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+The Project Gutenberg EBook of Food in War Time, by Graham Lusk
+
+This eBook is for the use of anyone anywhere at no cost and with
+almost no restrictions whatsoever. You may copy it, give it away or
+re-use it under the terms of the Project Gutenberg License included
+with this eBook or online at www.gutenberg.org
+
+
+Title: Food in War Time
+
+Author: Graham Lusk
+
+Release Date: May 21, 2010 [EBook #32472]
+
+Language: English
+
+Character set encoding: ISO-8859-1
+
+*** START OF THIS PROJECT GUTENBERG EBOOK FOOD IN WAR TIME ***
+
+
+
+
+Produced by Tom Roch, S.D., and the Online Distributed
+Proofreading Team at http://www.pgdp.net (This file was
+produced from images produced by Core Historical Literature
+in Agriculture (CHLA), Cornell University)
+
+
+
+
+
+----------
+
+Transcriber's Note:
+
+In the plain-text versions, italics are represented with _underscores_,
+and bold text with {braces}.
+
+The following corrections were made to the text: Du Bois to DuBois (p.
+45, Index entry) and Oleomargarin to Oleomargarine (p. 46, Index entry).
+
+The variant spelling "calory" (p. 32) has been retained.
+
+----------
+
+
+
+
+ FOOD IN WAR TIME
+
+ _By_
+ GRAHAM LUSK
+
+ PROFESSOR OF PHYSIOLOGY, CORNELL UNIVERSITY MEDICAL COLLEGE IN
+ NEW YORK CITY
+
+ PHILADELPHIA AND LONDON
+ W. B. SAUNDERS COMPANY
+ 1918
+
+
+ Copyright, 1918
+ by
+ W. B. SAUNDERS COMPANY
+
+ ***
+
+ PRINTED IN AMERICA
+
+
+ DEDICATED
+ TO MY
+ FELLOW-COUNTRYMEN
+
+
+
+
+CONTENTS
+
+
+ PAGE
+
+ I. A BALANCED DIET 7
+
+ II. CALORIES IN COMMON LIFE 23
+
+ III. RULES OF SAVING AND SAFETY 43
+
+ INDEX 45
+
+
+NOTE
+
+The major parts of this small volume appeared under articles entitled
+"Food in War Time" in the _Scientific Monthly_ and "Calories in Common
+Life" in Saunders' _Medical Clinics of North America_.
+
+
+
+
+FOOD IN WAR TIME
+
+I
+
+A BALANCED DIET
+
+
+There is no doubt that under the conditions existing before the war the
+American people lived in a higher degree of comfort than that enjoyed in
+Europe. Hard times in America have always been better times than the
+best times in Europe. As a student in Munich in 1890 I remember paying
+three dollars a month for my room, five cents daily for my breakfast,
+consisting of coffee and a roll without butter, and thirty-five cents
+for a four-course dinner at a fashionable restaurant. This does not
+sound extravagant, but it represents luxury when compared with the diet
+of the poorest Italian peasants of southern Italy. Two Italian
+scientists describe how this class of people live mainly on cornmeal,
+olive oil, and green stuffs and have done so for generations. There is
+no milk, cheese, or eggs in their dietary. Meat in the form of fat pork
+is taken three or four times a year. Cornmeal is taken as "polenta," or
+is mixed with beans and oil, or is made into corn bread. Cabbage or the
+leaves of beets are boiled in water and then eaten with oil flavored
+with garlic or Spanish pepper. One of the families investigated
+consisted of eight individuals, of whom two were children. The annual
+income was 424 francs, or $84. Of this, three cents per day per adult
+was spent for food and the remaining three-fifths of a cent was spent
+for other purposes. Little wonder that such people have migrated to
+America, but it may strike some as astonishing that a race so nourished
+should have become the man power in the construction of our railways,
+our subways, and our great buildings.
+
+Dr. McCollum will tell you that the secret of it all lies in the green
+leaves. The quality of the protein in corn is poor, but the protein in
+the leaves supplements that of corn, so that a good result is obtained.
+Olive oil when taken alone is a poor fat in a nutritive sense, but when
+taken with green leaves, these furnish that one of the peculiar
+accessory substances, commonly known as vitamines, which is present most
+abundantly in butter-fat, and gives to butter-fat and to the fat in
+whole milk its dominant nutritive value. The green leaves likewise
+furnish another accessory substance, also present in milk, a substance
+which is soluble in water and which is necessary for normal life.
+Furthermore, the green leaves contain mineral matter in considerable
+quantity and in about the same proportions as they exist in milk.
+
+Here then is the message of economy in diet, corn the cheapest of all
+the cereals, a vegetable oil cheaper by far than animal fat, which two
+materials taken together would bring disaster upon the human race, but
+if taken with the addition of cabbage or beet-tops they become capable
+of maintaining mankind from generation to generation. One can safely
+refer to such a diet as a balanced diet. Just as in the case of the
+modern experimental biological analysis of a balanced ration in which
+such a ration is given to rats and its efficiency as a diet is tested by
+its capacity to support normal growth and reproduction of the species,
+so here the experimental evidence is presented that corn and olive oil
+may become a sustaining diet when green leaves are a supplementary
+factor.
+
+This preliminary sketch shows several important fundamentals of food and
+nutrition. If one gives an animal a mixture of purified food-stuffs,
+pure protein, pure starch, purified fat, and a mixture of salts like the
+salts of milk, the animal will surely die. But if one substitutes
+butter-fat for purified fat, and adds a water solution of the natural
+salts of milk, the animal lives and thrives.
+
+Again, the illustration shows how corn may be so supplemented with
+other food-stuffs as to become extremely valuable in nutrition. It is
+especially valuable at the present time because corn is comparatively
+cheap and plentiful. But one asks how about pellagra? It must be here
+definitely stated that the use of cornmeal is not the cause of pellagra,
+provided the right kind of other foods be taken with it. Pellagra occurs
+in the "corn belt" of the United States, and especially among the poorer
+classes in the south. The disease has developed since the introduction
+in 1880 of highly perfected milling machinery which furnishes corn and
+wheat completely freed from their outer coverings. In Italy, where the
+milling of corn is still primitive, pellagra is not so severe as with
+us, because the corn offal is not completely removed and this contains
+the accessory food substances or vitamines which are essential to life.
+Pellagra is generally believed to be produced by a too exclusive use of
+highly milled corn and wheat flour in association with salt meats and
+canned goods, all of which are deficient in vitamines. The administration
+of fresh milk is naturally indicated. Goldberger states that after the
+addition of milk to the diet of a pellagrin, the typical clinical
+picture of pellagra no longer persists. The poor in the mill towns of
+the South lived too exclusively upon a corn diet without admixture of
+milk or fresh animal food or even of cabbage, and pellagra has been the
+consequence.
+
+The Food Administrator asks us to eat corn bread and save the wheat for
+export. It is a very small sacrifice to eat corn bread at one meal or
+more a day. Indian corn saved our New England ancestors from starvation,
+and we can in part substitute it for our wheat and send the latter
+abroad to spare others from starvation. The simplest elements of
+patriotism demand that we do this. Therefore let us cry, "Eat corn bread
+and save the wheat for France, the home of Lafayette!"
+
+The United States Department of Agriculture has estimated that only 6.6
+per cent. of our corn crop is used for human food, and of this, 3.4 per
+cent. is consumed by the farmers and their families.
+
+The substitution of foods is no new thing. We find that an English
+contemporary author thus described the food habits of the English people
+during the "golden days of Good Queen Bess," three hundred and fifty
+years ago:
+
+ "The gentilitie commonly provide themselves sufficiently of
+ wheat for their own tables, whylest their household and poore
+ neighbours in some shires are forced to content themselves
+ with rye or barleie; yea and in time of dearth many with bread
+ made eyther of beanes, peason[1] or otes, or of altogether and
+ some acornes among."
+
+[1] An obsolete plural of pease.
+
+A difference between those days and ours is that the "gentilitie" and
+the "poore neighbours" are now asked to unite in reducing the
+consumption of wheat and to do this for the safety and welfare of all
+mankind.
+
+Another point in war economy is the use of whole milk in greater
+quantity, and the diminution of the use of butter and cream. Cream is
+bought only by the wealthy, but in sufficient volume to largely reduce
+the amount of whole milk available. In Germany before the war 15 per
+cent. of the milk supply of that country was used for the production of
+cream. The consequent restriction of the milk supply was distinctly to
+the detriment of the health of the peasant farmers of Bavaria. Regarding
+the use of butter, a Swiss professor, himself an expert in nutrition,
+complains that whereas in his youth children were never given butter on
+their bread for breakfast, not even when there was no jam in the house,
+yet to-day absence of butter from the table is held to be indicative of
+direst poverty.
+
+If one takes a pint of whole milk daily, or even, as we have seen,
+cabbage or beet-tops in its stead, one may take fat in the forms of
+olive oil or cottonseed oil, corn oil, cocoanut oil, peanut butter, or
+in other vegetable oils, without possible prejudice to health.
+
+Osborne and Mendel, and more recently Halliburton, have pointed out that
+oleomargarine as prepared from beef-fat contains the fat-soluble
+growth-promoting accessory substance or vitamine which is present in
+butter-fat, but which is not contained in vegetable oils or in lard.
+
+Halliburton and Drummond summarize the practical results of their work
+as follows:
+
+ But when we approach the subject of the dietary of the poorer
+ classes, the question is a more serious one. In ordinary times
+ the consumption of beef dripping, which is considerable among
+ the poor, would to a large extent supply the lacking
+ properties of a vegetable-oil margarine. But at the present
+ time beef itself is expensive, and the opportunities of
+ obtaining dripping are therefore minimized. At the same time
+ the three important foods for children already enumerated
+ (milk, butter, eggs) have risen in cost, so as to be almost
+ prohibitive to those with slender incomes. The vegetable-oil
+ margarines still remain comparatively cheap, and the danger is
+ that unless measures are taken to insure a proper milk supply
+ for infants at a reasonable charge, these infants may run the
+ risk of being fed, so far as fat is concerned, entirely upon
+ an inferior brand of margarine, destitute of the
+ growth-promoting accessory substance. It would be truer
+ economy even for the poor to purchase smaller quantities of an
+ oleo-oil margarine if they cannot afford the luxury of real
+ butter.
+
+The legal restrictions placed upon the sale of oleomargarine and the
+taxes enhancing its cost, now in operation in many of our states, are
+without warrant in morals or common sense and should be entirely
+abolished in times like these. A well-made brand of oleomargarine is
+much more palatable than butter of the second grade, and certainly for
+cooking purposes is just as valuable.
+
+Whole milk contains everything necessary for growth and maintenance,
+protein, fat, milk-sugar, salts, water, and the unknown but invaluable
+accessory substances. It is of such prime importance that each family
+should have this admirable food that I have suggested that no family of
+five should ever buy meat until they have bought three quarts of milk.
+The insistence by scientific men upon the prime importance of milk has
+probably had something to do with its rapid enhancement in price. This
+latter factor is greatly to be regretted. I have often wondered why it
+was that a quart bottle of a fancy brand of milk in New York should cost
+about as much as a quart of _vin ordinaire_ on the streets of Paris, and
+a quart bottle of cream as much as a quart of good champagne in Paris.
+Despite much denial it appears to me that milk is not sold as cheaply as
+it ought to be. Everything should be done to conserve our herds of cows
+for the increased supply of whole milk and incidentally for the
+manufacture of cheese and of milk powder or of condensed milk.
+
+If one takes milk with other foods, meat may be dispensed with. Thus
+Hindhede advocates as ideal a diet consisting of bread, potatoes, fruit,
+and a pint of milk. Splendid health, both of body and mind, the
+peasants' comparative immunity to indigestion, kidney and liver disease,
+as well as an absolute immunity to gout, is the alluring prospect held
+out by the following dietary:
+
+ Graham bread 1 pound
+ Potatoes 2 pounds
+ Vegetable fat ½ pound
+ Apples 1½ pounds
+ Milk 1 pint
+
+This bread-potato-fruit diet gives a very excellent basis of wholesome
+nutrition. The potatoes yield an alkaline ash which has a highly solvent
+power over uric acid, and, therefore, a good supply of these valuable
+tubers is needed by the nation.
+
+To most Americans the dietary factors here described will appear to be
+merely attenuated hypotheses, fit only for philosophic contemplation.
+For, in real life, it is the roast beef of Old England, or some other
+famed equivalent, that makes its appeal. Far be it from me to disparage
+the feast following a hunt of the wild boar or other feasts famed in
+song and story, but that is not the question. The question is, is meat
+necessary? The description of the Italian dietary answers this in the
+negative.
+
+But is meat desirable? The Italian experimenters believed that the
+addition of four or eight ounces of meat to the dietaries of some of
+their subjects increased their physical and also their mental powers.
+The increase in mental power due to change in diet has always seemed to
+me to be a figment of the imagination and not susceptible of
+demonstration. Thomas lived for twenty-four days on a diet of starch and
+cream, during four days of which time the very small quantity of three
+ounces of meat was taken daily, and he found his mental and muscular
+power unchanged.
+
+A remarkable experiment on the effect of a potato diet has been
+reported by Hindhede. An individual partook of a diet of between four
+and one-half and nine pounds of potatoes daily, with some vegetable
+margarine, during a period of nearly three hundred days. The rule was to
+eat only when hungry and then the potatoes could be taken at the rate of
+an ounce a minute. During the last three months (ninety-five days) of
+the experiment severe mechanical work was performed and the total food
+intake for the latter period amounted to 770 pounds of potatoes and 48
+pounds of margarine. What could be more simple than stocking the cellar
+with coal, potatoes, and a tub of margarine! Who then would worry about
+the complexities of modern life?
+
+Of course, vegetarianism is no new thing. Its principal exponent was
+Sylvester Graham. It so happens that he was the brother of my great
+grandmother, and of him my father wrote in 1861, "long lanky Sylvester
+Vegetable Graham, leanest of men." Graham in 1829 began the advocacy of
+moderation in the use of a diet consisting of vegetables, Graham bread,
+fruits, nuts, salts and pure water, and excluding meat, sauces, salads,
+tea, coffee, alcohol, pepper, and mustard. The first effect of this
+diet, which largely eliminated the flavors, was to reduce the weight
+through lowering the intake of food, but the health of many followers of
+the diet appears to have been benefited. The "Graham System" of dieting
+suffered from withering criticism at the time. He published in 1837 a
+little book entitled, "Bread and Bread Making," bearing on its cover the
+scriptural quotation "Bread strengtheneth man's heart." He says in this
+volume:
+
+ But while the people of our country are entirely given up as
+ they are at present, to gross and promiscuous feeding on the
+ dead carcasses of animals and to the untiring pursuit of
+ wealth, it is perhaps wholly vain for a single individual to
+ raise his voice on a subject of this kind.
+
+The well-known work of Chittenden has shown that when the protein
+intake is reduced by one half or less of that which the average American
+appetite suggests, professional men, soldiers and athletes may be
+maintained in the best physical condition. One of Yale's champion
+intercollegiate athletes won all the events of the year in which he was
+entered while living on a reduced protein or Chittenden diet. Upon such
+a diet, or less than that, the people of Germany are now living to-day.
+The principle involves eating meat very sparingly, taking half a piece
+where one would have formerly been taken, and using it only for its
+flavor. The wing of a chicken has little meat on it and yet if eaten
+together with vegetables it gives the meal a different quality than it
+would have had without it, and to this extent its use is warranted. The
+muscles are active when hard labor is done, but the muscles do not need
+meat for the performance of their work. A fasting man may have
+considerable power. The popular idea of the necessity of meat for a
+laboring man may be epitomized in the statement: a strong man can eat
+more meat than a weak one, hence meat makes a man strong. The
+proposition is evidently absurd.
+
+Not only is the taking of meat without beneficial relation to the
+capacity for muscular work, but, in fact, an exclusive meat diet results
+in the sensation that work is being accomplished with difficulty. When
+meat is metabolized it stimulates the body to a higher heat production,
+as great an increase as 55 per cent. having been observed in a resting
+man. No other food-stuff will accomplish so great an increase. It is
+especially worthy of note that this increase in the heat production, due
+to the _specific dynamic action_ of protein, as it is called, cannot be
+utilized in the execution of mechanical work. When the organism of a
+laborer at work in a hot environment is called upon to eliminate extra
+heat, due to the work he is performing, he must also eliminate the quota
+of heat which is derived from any large ingestion of meat. Hence, the
+American farmer in the hot weather can eat little meat.
+
+So far as is known, taking meat even in large excess is not harmful, but
+it represents luxury and waste. According to an oral statement by A. E.
+Taylor, the results of many thousand urinary analyses in Germany during
+the second year of the war showed about 7 grams of nitrogen excreted,
+which would correspond to a dietary containing about 45 grams of
+protein. As a matter of fact, this is the equivalent of the reduced
+protein dietary of Chittenden, and it is reported that no ill effects
+can be attributed to it. The flavor of meat is such that it lends itself
+to the easy preparation of a palatable meal, but this flavor could
+undoubtedly be as well obtained if the present consumption of meat were
+cut in two. It is a question of habit, but with the present reduced
+supply of meat one must adopt new habits. It would be highly desirable
+if the grain now fed to fatten beef were given to maintain herds of
+milch cows.
+
+Indulgence in meat is due to the desire for strong flavor. With the
+increased distribution of wealth, the demand for meat grows. Its
+consumption by all classes had vastly increased in all prosperous
+countries prior to the war. It is well, however, to remember that its
+use has been excessive and unnecessary, and its price can be cut by
+wholesale voluntary abstinence. The British people have suffered no
+hardship in the recent reduction of their meat ration.
+
+A British Commission has reported to Parliament that it takes three
+times as much fodder to produce beef as it does to produce milk or pork
+of the same food value. Since cows eat chiefly hay and grass and pigs
+eat grain the cost of the production of a unit value of milk is much
+less than the cost of the same value in the form of pork. It takes only
+fifty per cent. more fodder to produce veal than to produce pork. Milk,
+pork, and veal have long been the established protein-containing foods
+of nations on the continent of Europe. According to these figures beef
+should cost in the market twice what veal costs, and yet the butcher
+charges nearly the same for the two. It would save food for milk
+production if steers were eaten as veal and not fed up into beef cattle.
+A suitable tax on all steers over a year old would accomplish this
+result. If all heifers were developed into milch cows and no cow capable
+of giving milk in quantity were slaughtered, the country would be placed
+on a much better basis than at present. It might make beef expensive,
+but there is every reason why it should be expensive. It would increase
+the dairy business, which is evidently a need of the times, something
+for the protection of the welfare of mankind. For it must be remembered
+that a well-nourished cow during a single year will give in the form of
+milk as much protein and two and a half times the number of calories as
+are contained in her own body.
+
+This was written before the publication of the following words of
+Armsby, the foremost authority on animal nutrition:[2]
+
+ Roast pig, to those who like it, is not only a delicacy but a
+ valuable article of diet, but nevertheless, it is possible to
+ pay too high a price for it, and while a proposal to restrict
+ rather than to promote meat production in the present crisis
+ may appear both irrational and unpatriotic it may nevertheless
+ be in the interest of true food economy....
+
+ It may be roughly estimated that about 24 per cent. of the
+ energy of grain is recovered for human consumption in pork,
+ about 18 per cent. in milk and only about 3.5 per cent. in
+ beef and mutton. In other words, the farmer who feeds bread
+ grains to his stock is burning up 75 to 97 per cent. of them
+ in order to produce for us a small residue of roast pig, and
+ so is diminishing the total stock of human food....
+
+ The task of the stock feeder must be to utilize through his
+ skill and knowledge the inedible products of the farm and
+ factory, such as hay, corn stalks, straw, bran, brewers' and
+ distillers' grains, gluten feed, and the like, and to make at
+ least a fraction of them available for man's use. In so doing
+ he will be really adding to the food supply and will be
+ rendering a great public service. Rather than seek to
+ stimulate live stock husbandry the ideal should be to adjust
+ it to the limits set by the available supply of forage crops
+ and by-product feeding stuffs while, on the other hand,
+ utilizing these to the greatest practicable extent, because in
+ this way we save some of what would otherwise be a total
+ loss....
+
+ The hog is the great competitor of man for the higher grades
+ of food, and in swine husbandry as ordinarily conducted we are
+ in danger of paying too much for our roast pig. Cattle and
+ sheep, on the other hand, although less efficient as
+ converters, can utilize products which man can not use and
+ save some of their potential value as human food. From this
+ point of view, as well as on account of the importance of milk
+ to infants and invalids, the high economy of food production
+ by the dairy cow deserves careful consideration, although of
+ course the large labor requirement is a counterbalancing
+ factor.
+
+ At any rate, it is clear that at the present time enthusiastic
+ but ill-considered "booming" of live stock production may do
+ more harm than good. If it is desirable to restrict or
+ prohibit the production of alcohol from grain or potatoes on
+ the ground that it involves a waste of food value, the same
+ reason calls for restriction of the burning-up of these
+ materials to produce roast pig. This means, of course, a
+ limited meat supply. To some of us this may seem a hardship.
+ Meat, however, is by no means the essential that we have been
+ wont to suppose and partial deprivation of it is not
+ inconsistent with high bodily efficiency. Certainly no
+ patriotic citizen would wish to insist on his customary
+ allowance of roast pig at the cost of the food supply of his
+ brothers in the trenches.
+
+[2] "Roast Pig," _Science_, 1917, xlvi, 160.
+
+The United States Department of Agriculture has estimated that a pig
+that has reached the weight of 150 pounds should be slaughtered, because
+beyond that weight the cost of the quantity of feed required to maintain
+the animal is out of proportion to the gain in food value of the pig.
+One might, therefore, call a pig weighing 150 pounds a _maximal economic
+hog_.
+
+
+
+
+II
+
+CALORIES IN COMMON LIFE
+
+
+A person is properly nourished who receives adequate energy in the form
+of carbohydrate and fat (and incidentally protein); adequate material
+for repair of wornout parts, such as protein and mineral salts; and the
+diet must contain certain accessory food substances known as food
+hormones or "vitamins." Also, it must contain water. But this is not
+all, for the food offered must be acceptable to the palate of the
+individual. A member of the French Scientific Commission which visited
+the United States in the summer of 1917, when questioned regarding the
+use of corn bread in France, replied "on ne peut pas changer des
+habitudes." The proper nutrition of an individual depends, therefore,
+not only upon a sufficient supply of food from a mechanistic standpoint,
+but also upon the reasonable satisfaction of the sense of appetite.
+These dual fundamentals of proper nutrition should be ever borne in
+mind.
+
+Heat from the sun enters into the composition of the food substances
+when they are being built up in the plants, and this energy, which is
+latent in the food, is set free in the animal body and is used as the
+source of power behind all the physical activities of the body. The
+energy can all be recovered as heat and measured in the form of
+calories. According to the principles of the law of the conservation of
+energy, heat is not destructible. The understanding of the value of a
+calorie is indispensable for the comprehension of nutrition. A calorie
+is the measure of a unit of heat, or the quantity of heat necessary to
+raise a liter of water from 0° to 1° Centigrade. Apparatus has been
+invented for measuring the heat production of a man, an apparatus which
+is called a calorimeter or a measurer of calories. If one puts a man
+weighing, say, 156 pounds in the box of such an apparatus, so that he
+lies comfortably on a bed in complete muscular relaxation, and before
+his breakfast, one finds that he produces 70 calories an hour. Only in
+certain types of disease is there any variation from this normal, though
+of course the weight of the man makes a difference in his requirement
+for energy. If, at the same time the subject is in the box, the quantity
+of oxygen which he absorbs is measured and if certain other chemical
+analyses be carried out, one can calculate the exact amounts of protein,
+fat, and sugar which have been oxidized by this oxygen. Now, if one
+calculates how much heat ought to have been set free from the oxidation
+of these quantities of protein fat and carbohydrate, it is discovered
+that the heat which ought to have been produced is exactly that quantity
+which was measured as having been produced by the man. This measurement
+represents the _basal metabolism_ of a man at complete rest, when his
+oxidative activities are at their lowest ebb.
+
+The basal metabolism as measured by 70 calories per hour in the case of
+this individual represents the sum of the fuel needed--(1) to maintain
+the beating of the heart, which every minute of a man's life moves the
+blood or one-twentieth part of the weight of the body, in a circle
+through the blood-vessels; (2) to maintain the muscles of respiration
+that the blood may be purified in the lungs; (3) to maintain the body
+temperature at that constant level which is so characteristic that a
+slight variation signifies illness, and (4) to maintain in the living
+state the numerous tissues of the body. Any extraneous muscular
+movements are carried out in virtue of an increased oxidation of
+materials and the heat production rises above the level of the basal
+metabolism with increased muscular effort. For a long time the power for
+the maintenance of the human machine can be furnished by its own body
+fat, as is seen in cases of prolonged fasting, but usually the power is
+derived instead from the food-fuel which is taken. The great question in
+the world to-day is whether or not a sufficient quantity of food-fuel is
+available to support the human family. The question of calories is not
+an academic one, but an intensely practical one.
+
+Science strives to express itself in mathematic terms, and this paper is
+written with that end in view.
+
+Phenomena of life are phenomena of motion. These motions are maintained
+at the expense of chemical energy liberated in the oxidative breakdown
+of carbohydrate, fat, and protein. Furthermore, the protein structure of
+the body cells and the salts of the bones and other tissues are in a
+constant state of wearing down. The energy for the human machine and the
+materials for its self-repair are taken in the form of food. The general
+term _metabolism_ includes all the chemical activities which take place
+under the influence of living cells.
+
+The total quantity of heat produced by the body is a measure of the
+intensity of the oxidation of carbohydrate, fat, and protein within the
+body.
+
+It is important to know definitely whether there is any constant measure
+of the level of the basal metabolism in normal people, so that one may
+determine in cases of disease whether the heat production is normal or
+increased or decreased.
+
+Rubner discovered that the heat production of mammalia during rest was
+the same per square meter of surface whether the being was a horse, a
+man, a dog, or a mouse. The proposition has appeared so improbable as to
+call forth much antagonism. DuBois deserves the credit of having
+established this relationship for man beyond the possibility of a doubt.
+He was able to do this on account of his discovery of a new and accurate
+method of measuring the area of the body surface. It appears from his
+work that the _basal metabolism_ for men between twenty and fifty years
+old is approximately 40 calories per hour per square meter of body
+surface, within a ± error of 10 per cent.
+
+Boothby has found that the metabolism of patients who have recovered
+their health after hospital operations and who have been confined in the
+hospital between twenty and fifty days does not vary from the normal
+standard of DuBois.
+
+It has been found by DuBois that the basal metabolism in boys of twelve
+is 25 per cent. higher than for an adult of the same height and weight,
+or {50} calories per square meter of body surface; and that in boys of
+fifteen the metabolism is 11 per cent. higher than for the adult of the
+same size and shape, or {44} calories per square meter of body surface
+(unpublished work of DuBois). These results explain the large appetites
+of boys.
+
+Women show a metabolism which is 7 per cent. lower than that of men, or
+{37} calories per hour per square meter of surface.
+
+From the charts of the average heights and weights of men varying
+between fifteen and fifty-five years old, given by American life
+insurance companies, Mr. H. V. Atkinson, of my laboratory, has
+calculated the basal metabolism in a table here presented.
+Unfortunately, the weights given in these statistics include clothes
+worn by the individuals. The calculated heat production, however, is in
+each case based upon the weight without clothes. The table is computed
+from the following values:
+
+ Calories per
+ square meter
+ Age in years of surface
+
+ 15 44
+ 20-50 40
+ 55 37
+
+The table may also be used as follows:
+
+ To find the metabolism of--
+
+ Women between twenty to fifty years, multiply values for man
+ by 0.93.
+
+ Boys of twelve to thirteen years, multiply values for boys of
+ fifteen years by 1.10.
+
+
+THE BASAL METABOLISM OF MEN
+
+_Calculated from values of the basal metabolism determined by the
+methods of DuBois and applied to a table showing the average weights of
+221,819 men of different ages and heights compiled from the statistics
+of the medico-actuarial investigation of 1912._
+
+ ------------+------+------+------+------+------+------+------+------+------
+ Age. | | | | | | | | |
+ Heat per | 5 ft.| 5 ft.| 5 ft.| 5 ft.| 5 ft.| 5 ft.| 6 ft.| 6 ft.| 6 ft.
+ square meter| 0 in.| 2 in.| 4 in.| 6 in.| 8 in.|10 in.| 0 in.| 2 in.| 4 in.
+ of surface | | | | | | | | |
+ ------------+------+------+------+------+------+------+------+------+------
+ | Lbs.| Lbs.| Lbs.| Lbs.| Lbs.| Lbs.| Lbs.| Lbs.| Lbs.
+ | Cals.| Cals.| Cals.| Cals.| Cals.| Cals.| Cals.| Cals.| Cals.
+ 15 years | 107 | 112 | 118 | 126 | 134 | 142 | 152 | 162 | 172
+ 44 calories |{1510}|{1584}|{1658}|{1753}|{1837}|{1922}|{2006}|{2096}|{2186}
+ | | | | | | | | |
+ 20 years | 117 | 122 | 128 | 136 | 144 | 152 | 161 | 171 | 181
+ 40 calories |{1430}|{1498}|{1565}|{1647}|{1719}|{1796}|{1868}|{1949}|{2035}
+ | | | | | | | | |
+ 25 years | 122 | 126 | 133 | 141 | 149 | 157 | 167 | 179 | 189
+ 40 calories |{1459}|{1517}|{1594}|{1671}|{1738}|{1820}|{1896}|{1992}|{2083}
+ | | | | | | | | |
+ 30 years | 126 | 130 | 136 | 144 | 152 | 161 | 172 | 184 | 196
+ 40 calories |{1478}|{1536}|{1604}|{1685}|{1757}|{1839}|{1920}|{2007}|{2112}
+ | | | | | | | | |
+ 35 years | 128 | 132 | 138 | 146 | 155 | 165 | 176 | 189 | 201
+ 40 calories |{1488}|{1556}|{1613}|{1695}|{1767}|{1853}|{1939}|{2035}|{2136}
+ | | | | | | | | |
+ 40 years | 131 | 135 | 141 | 149 | 158 | 168 | 180 | 193 | 206
+ 40 calories |{1498}|{1565}|{1623}|{1709}|{1781}|{1863}|{1959}|{2055}|{2160}
+ | | | | | | | | |
+ 45 years | 133 | 137 | 143 | 151 | 160 | 170 | 182 | 195 | 209
+ 40 calories |{1507}|{1570}|{1632}|{1719}|{1791}|{1872}|{1968}|{2064}|{2169}
+ | | | | | | | | |
+ 50 years | 134 | 138 | 144 | 152 | 161 | 171 | 183 | 197 | 211
+ 40 calories |{1517}|{1575}|{1642}|{1724}|{1796}|{1881}|{1973}|{2074}|{2184}
+ | | | | | | | | |
+ 55 years | 135 | 139 | 145 | 153 | 163 | 173 | 184 | 198 | 212
+ 37 calories |{1449}|{1485}|{1548}|{1620}|{1692}|{1773}|{1854}|{1949}|{2052}
+ ------------+------+------+------+------+------+------+------+------+------
+
+The basal metabolism of an average boy of thirteen years of age
+weighing 80 pounds and of a height of 4 feet, 10 inches, may be
+calculated as 1525 calories per day. This is the same as that of a man
+twenty-five years old, weighing 126 pounds and 5 feet, 2 inches tall.
+
+A boy thirteen years old and weighing 156 pounds, his height being 6
+feet, 1 inch (there are such cases), would have a basal metabolism of
+2300 calories, or larger than that of any grown man given in the
+table--larger than a man weighing 211 pounds and 6 feet, 4 inches in
+height. I personally know a boy of this age and size. His parents are
+said to have sent him to boarding school in order to reduce their food
+bills.
+
+It is evident from this discussion that the food requirement of boys
+over twelve years old is about the same as that of men. The emaciation
+of the children of the poor probably reduces their requirement of food.
+It is not generally recognized that the boy needs as much food as his
+father. The requirements of girls have not been investigated, but they
+probably need as much as their mothers.
+
+These data will give with close scientific precision the _minimal
+requirement for energy_ which is necessary for the maintenance of the
+bed-ridden.
+
+Ordinary life, however, is not constituted after this fashion. "By the
+sweat of thy brow shalt thou eat bread."
+
+From the work of F. G. Benedict one may calculate the increase in the
+basal metabolism, as follows:
+
+ Increase in
+ the basal
+ metabolism
+ Occupation in per cent.
+
+ Sitting 5
+ Standing, relaxed 10
+ Standing, hand on a staff 11
+ Standing, leaning on support 3
+ Standing, "attention" 14
+
+If one wishes to determine from the basal metabolism table the heat
+production of a person who is confined to his room, one should add to
+the metabolism of the twenty-four hours the increase above the basal for
+those hours of the day during which he is sitting in a chair or
+standing.
+
+Passing to a consideration of the subject of mechanical work done by a
+man, one finds that it requires about 1.1 calories to transport a pound
+of body weight three miles during an hour, and that increasing power
+must be generated if the speed is increased above this rate of _maximal
+economic velocity_.
+
+These relations are shown below:
+
+ Extra calories
+ per hour required
+ to move 1 pound
+ Rate of movement of body
+
+ Walking 3 miles per hour 1.1
+ Walking 5.3 miles per hour 3.6
+ Running 5.3 miles per hour 3.1
+
+If one wishes to determine the heat production of a man weighing 156
+pounds and 5 feet, 7 inches in height, and who is walking or running,
+the following calculations can be made:
+
+ Rate of travel per hour in miles 3[3] 5.3[3] 5.3[4]
+ Cals. Cals. Cals.
+
+ Metabolism for transporting 156 pounds 172 562 484
+ Basal metabolism 70 70 70
+ Add for standing 7 7 7
+ --- --- ---
+ 249 639 561
+
+[3] Walking.
+
+[4] Running.
+
+If the man's food cost 10 cents a thousand calories, it may be
+calculated that he would have to walk over eight miles at a rate of
+three miles per hour in order to save money when he pays a 5-cent
+carfare. (This, however, does not include the cost of shoe leather.)
+
+The carrying of a load of 44 pounds is done at the same expenditure of
+energy as the carrying of one's own body weight when the rate is three
+miles an hour, so the soldier's equipment would call for the added
+expenditure of 48 calories (44 × 1.1), making his total hourly
+expenditure of energy nearly 300 calories (249 + 44) during a hike on a
+level road. His daily requirement for energy might be:
+
+ Calories
+
+ Sleeping 8 hours at 70 calories per hour 560
+ Resting in camp 6 hours at 77 calories per hour 462
+ Hike of 30 miles, 10 hours at 300 calories per hour 3000
+ ----
+ 4022
+
+This would be the heat production of a soldier on a day of a "forced
+march." The ordinary day's march is only fifteen miles.
+
+This assumes a level road. If, however, there are hills to climb and
+the body weight and the pack are lifted 1000 feet during the hike, this
+is done at the additional expense of approximately 0.96 calory of energy
+per pound of weight lifted. If the man weighed 156 pounds and the pack
+44 pounds, the additional fuel requirement would be 192 calories (200 ×
+0.96). The total energy requirement for this kind of a hike would have
+been 4200 calories. Walking down hill is accomplished at an expenditure
+of slightly less energy than walking on the level, but this factor need
+not concern one.
+
+Supposing, however, this individual were running, lightly clad, on a
+level road in a race for a distance of 40 miles at the rate of 5.3 miles
+per hour, he would complete the distance in seven hours and thirty-three
+minutes, which is a reasonable record. His metabolism might thus be
+calculated:
+
+ Calories
+
+ Sleeping 10 hours at 70 calories per hour 700
+ Resting 6 hours, 23 minutes, at 77 calories per hour 497
+ Running 7 hours, 33 minutes, at 561 calories per hour 4236
+ ----
+ 5433
+
+It is a matter of record that a man has run between Milwaukee and
+Chicago, a distance of 80 miles, in about fifteen hours. Such an amount
+of work would have required over 9000 calories for the day.
+
+These calculations are all based upon experimental results obtained in
+various laboratories in different parts of the world and can be accepted
+as being free from any gross error.
+
+It is evident that the energy requirement is proportional to the amount
+of mechanical energy expended.
+
+One may turn now to the fuel needs in terms of calories in certain
+industrial pursuits. According to Becker and Hämäläinen, the quantity of
+extra metabolism per hour required in various pursuits is as follows:
+
+ Extra calories of
+ metabolism per
+ hour due to
+ occupation
+
+ Occupations of women:
+ Seamstress 6
+ Typist[5] 24
+ Seamstress using sewing machine 24-57
+ Bookbinder 38-63
+ Housemaid 81-157
+ Washerwoman 124-214
+
+ Occupations of men:
+ Tailor 44
+ Bookbinder 81
+ Shoemaker 90
+ Carpenter 116-164
+ Metal worker 141
+ Painter (of furniture) 145
+ Stonemason 300
+ Man sawing wood 378
+
+[5] Observation of Carpenter.
+
+To use this table one may seek the basal metabolism of the individual,
+add 10 per cent. for sixteen hours of wakefulness when the person is
+sitting or standing, and then multiply the factors in the last table by
+the numbers of hours of work. For example, if one takes the individual
+weighing 156 pounds, one obtains the following requirements of energy if
+his business were that of a tailor and he worked eight hours a day:
+
+ Calories
+
+ Sleeping 8 hours at 70 calories per hour 560
+ Awake 16 hours at 77 calories per hour 1232
+ Add for work as tailor 8 hours at 44 calories 352
+ ----
+ 2144
+
+After this fashion one might calculate his food requirements had he
+followed occupations other than that of tailor:
+
+ Calories of
+ metabolism
+ Occupation per day
+
+ Bookbinder 2440
+ Shoemaker 2510
+ Carpenter 3100
+ Metal worker 2900
+ Painter 2950
+ Stonemason 4200
+ Man sawing wood 4800
+
+These figures make no allowance for walking to or from the place of
+employment.
+
+The data here given are inadequate to cover the industrial situation,
+but they show clearly that heavy work cannot be accomplished without a
+sufficient amount of food-fuel.
+
+The food-fuel with which to accomplish work is necessary not only for
+the soldier, but for the workman behind the line, and it should be
+adequate in quantity, satisfactory in quality, and not exorbitant in
+cost.
+
+In virtue of the world-wide scarcity of food, the work of the individual
+should be worthy of the food which he eats.
+
+Tables showing the cost of various wholesome food-stuffs about July 1,
+1917, are here reproduced for the benefit of the reader. The tables were
+prepared by Dr. F. C. Gephart and issued by the Department of Health of
+the City of New York in a leaflet edited by Doctors Holt, La Fetra,
+Pisek, and Lusk on the subject of food for children. If the world is
+seeking after energy in the form of food-fuel, the world is rightly
+entitled to understand the value of its purchases. It must be clearly
+understood that people are always destined to look with hopeful
+anticipation toward the enjoyment of a meal. They will instinctively
+"eat calories" just as they instinctively "eat pounds." They _buy
+pounds_ of food, and they could buy more intelligently if they knew the
+energy value of what they buy.
+
+ Cost of 1000 Price per
+ calories, pound,
+ cents cents
+ TABLE 1--_Cost of Fats._
+ Cottonseed oil 7.3 31
+ Oleomargarine 8.5 30
+ Peanut butter 8.8 25
+ Butter 11.9 43
+ Olive oil 12.1 51
+ Bacon 13.8 37
+ Bacon, sliced, in jars 23.8 65
+ Cream (extra heavy, 40 per cent.) 37.7 65 (1 pint)
+
+ TABLE 2--_Cost of Cereals._
+ Cornmeal, in bulk 3.6 6
+ Hominy, in bulk 3.6 6
+ Broken rice, in bulk 3.7 6
+ Oatmeal, in bulk 3.8 7
+ Samp, in bulk 4.2 7
+ Quaker Oats, in package 4.4 8
+ Macaroni, in package 4.5 8
+ Wheat flour, in bulk 4.6 8
+ Malt breakfast food, in package 4.8 8
+ Pettijohn, in package 5.3 9
+ Cream of Wheat, in package 5.7 10
+ Farina, in package 5.9 10
+ Cracked wheat, in bulk 5.9 10
+ Pearl barley, in package 6.0 10
+ Barley flour, in bulk 6.1 10
+ Whole rice, in bulk 6.1 10
+ Wheatena, in package 8.1 14
+
+ TABLE 3--_Cost of Ready-to-serve Cereals._
+ Shredded Wheat Biscuit 7.8 13
+ Grape-nuts 8.6 15
+ Force 9.4 16
+ Corn Flakes 11.7 20
+ Puffed rice 23.5 38
+
+ TABLE 4--_Cost of Vegetables._
+ White potatoes 12.9 4.0
+ Turnips 20.0 2.5
+ New beets 27.6 5.0
+ Onions 29.3 6.0
+ Spinach 30.0 3.3
+ Green peas 39.2 10.0
+ Lima beans 39.2 10.0
+ Cauliflower 42.9 6.0
+ Carrots 50.0 8.0
+ String-beans 55.6 10.0
+ Squash 76.2 8.0
+ Lettuce 89.4 7.0
+ Celery 214.0 15.0
+
+ TABLE 5--_Cost of Breadstuffs._
+ Ginger-snaps 6.3 12.0
+ Graham bread 8.2 10.3
+ White bread 8.5 10.3
+ Rye bread 8.7 10.3
+ Graham crackers 9.2 18.0
+ Soda crackers 9.4 18.0
+ French rolls 10.8 14.0
+ Uneeda Biscuit 12.4 24.0
+
+ TABLE 6--_Cost of Proteins._
+ Milk (Grade A) 20.0 13.0 (1 quart)
+ Roast beef (rib) 23.4 26.0
+ Buttermilk 26.5 9.0 (1 quart)
+ Lamb chops (loin) 32.7 43.0
+ Lamb chops (rib) 34.9 38.0
+ Young codfish (fresh) 38.6 12.0
+ Chicken (roasting) 41.3 32.0
+ Eggs 44.7 45.0 (1 dozen)
+ Beefsteak (round) 50.4 34.0
+
+ TABLE 7--_Cost of Fruit._
+ Fresh (in season):
+ Bananas 23.0 6
+ Apples 23.7 5
+ Oranges 65.0 10
+ Dried:
+ Prunes 8.4 10
+ Apples 11.1 15
+ Peaches 12.5 15
+ Apricots 15.5 20
+
+ TABLE 8--_Cost of Syrup._
+ Cane sugar 4.5 8
+ Karo corn syrup 5.7 8
+
+A British scientific commission has reported to Parliament that if the
+workman be undernourished he may, by grit and pluck, continue his labor
+for a certain time, but in the end his work is sure to fail. It makes no
+difference what the nutritive condition of the person is, if a certain
+job involving muscular effort is to be done it always requires a
+definite amount of extra food-fuel to do it. Rubner, the greatest German
+authority on nutrition, excited grossly inappropriate hilarity in the
+comic press of his country by showing that a poor woman who waited
+several hours in line in order to receive the dole of fat allowed her by
+the government actually consumed more of her own body fat in the effort
+of standing during those hours than she obtained in the fat given her
+when her turn to receive it came at last.
+
+A method by which food-fuel can readily be saved with benefit to the
+nation and to the individual is for the overfat to reduce their weight.
+This has been done with drastic severity in Germany. I have heard from
+unquestioned sources how a man who had weighed 240 pounds lost 90 pounds
+since the war began; how a corpulent professor at Breslau lost greatly
+in weight, but during the second summer of the war regained his former
+corpulence during a sojourn in the Bavarian Tyrol, a joy not now
+tolerated; and how an American woman lost 40 pounds in weight last
+winter in Dresden. There is every reason why a man who is overweight at
+the age of fifty should reduce his weight until he reaches the weight he
+was when he was thirty-five. According to Dr. Fisk he is a better
+insurance risk if after thirty-five he is under the weight which is the
+average for those of his years. Reduction in weight reduces the basal
+requirement for food, and reduces the amount of fuel needed for moving
+the body in walking. The most extreme illustration of the effect of
+emaciation upon the food requirement is afforded by a woman who after
+losing nearly half of her body weight was found to need only 40 per
+cent. of the food-fuel formerly required. This represented a state not
+far from the border line of death from starvation, but it indicates how
+a community may long support itself on restricted rations. It must be
+strictly borne in mind, however, that if any external muscular work is
+to be accomplished it can only be effected at the expense of a given
+added quantity of food-fuel, whether the person be fat or thin.
+
+It is not at all difficult to reduce the body weight. Suppose a
+clergyman or a physician requires 2500 calories daily in the
+accomplishment of his work and takes 2580 calories per day instead. The
+additional 80 calories is the equivalent of a butter ball weighing a
+third of an ounce, or an ounce of bread or half a glass of milk. It
+would seem to be the height of absurdity to object to such a trifle. But
+if this excess in food intake be continued for a year, the person will
+gain nine pounds and at the end of ten years ninety pounds. Such a
+person would find that he required a constantly increasing amount of
+food in order to transport his constantly increasing weight. In
+instances of this sort a motto may be applied which I heard the last
+time I was in Washington: "Do not stuff your husband, husband your
+stuff."
+
+Now it is evident that, if instead of taking more than the required
+amount of food a little less be taken than is needed, the balance of
+food-fuel must be obtained from the reserves of the body's own supply of
+fat. By cutting down the quantity of fat taken, or by eliminating a
+glass of beer or a drink of whiskey, and not compensating for the loss
+of these by adding other food stuffs, the weight may be gradually
+reduced. The amusing little book entitled "Eat and Grow Thin" recommends
+a high protein and almost carbohydrate-free diet for the accomplishment
+of this purpose, but its advice has made so many of my friends so
+utterly miserable that I am sure in the end it will counteract its own
+message.
+
+The work of the world is accomplished in largest part by the oxidation
+of carbohydrates, that is to say, of sugars and starches. Bread, corn,
+rice, macaroni, cane-sugar, these are _par excellence_ the food-fuels of
+the human machine. In the dinner-pail of the laborer they testify as to
+the source of his power. They are convertible into glucose in the body,
+which glucose gives power to the human machine. They may be used for the
+production of work without of themselves increasing the heat production
+of the worker, as happens after meat ingestion. (See p. 18.) Fat also
+may be used as a source of energy, but unless carbohydrate is present a
+person can not work up to his fullest capacity.
+
+Cane-sugar is a valuable condiment, and when taken in small quantities
+every half hour, may delay the onset of fatigue. It is more largely used
+in the United States than in other countries in the world. As a
+substitute, glucose may be used. This is found in grapes and in raisins
+and it is also produced in large quantities by the hydrolysis of starch
+and sold under the commercial name of corn syrup or Karo. This substance
+is entirely wholesome and may be freely employed in the place of sugar,
+which is scarce.
+
+As to the use of alcoholic beverages, the question resolves itself into
+several factors. Alcohol gives a sham sensation of added force and in
+reality decreases the ability to do work. Alcohol is the greatest cause
+of misery in the world, and as Cushny has put it, if alcohol had been a
+new synthetic drug introduced from Germany, its importation would long
+since have been forbidden. On the other hand, good beer makes poor food
+taste well. It also frequently leads to overeating. The cure for bad
+food is to have our daughters taught how to cook a decent meal. After
+that we can talk about prohibition.
+
+In some parts of the world whole nations are starving to death. In most
+countries of the world people are short of food. In America we have more
+food than in any other land, and we must, therefore, be careful in our
+abundance, saving it to the utmost, while, at the same time, conserving
+the safety of our own people.
+
+
+
+
+III
+
+RULES OF SAVING AND SAFETY
+
+
+1. Let no family (of five persons) buy meat until it has bought three
+quarts of milk, the cheapest protein food. Farmers should be urged to
+meet this demand.
+
+2. Save the cream and butter and eat oleomargarine and vegetable oils.
+Olive oil or cottonseed oil, taken with cabbage, lettuce, or beet-tops,
+is excellent food, in many ways imitating milk.
+
+3. Eat meat sparingly, rich and poor, laborer and indolent alike. Meat
+does not increase the muscular power. When a person is exposed to great
+cold, meat may be recommended, for it warms the body more than any other
+food. In hot weather, for the same reason, it causes increased sweating
+and discomfort. In general, twice as much meat is used as is now right,
+for to produce meat requires much fodder which might better be used for
+milk production.
+
+4. Eat corn bread. It saved our New England ancestors from starvation.
+If we eat it we can send wheat to France. Eat oatmeal.
+
+5. Drink no alcohol. In many families 10 per cent. of the income is
+spent for drink, or a sum which, if spent for real food, would greatly
+improve the welfare of the family.
+
+6. Eat corn syrup on cereals. It will save the sugar. Eat raisins in
+rice pudding, for raisins contain sugar.
+
+7. Eat fresh fish.
+
+8. Eat fruit and vegetables.
+
+Since the total energy for the maintenance of our bodies can be measured
+in calories, and since this energy serves for the maintenance of the
+nations of the world, is it not surprising how little even educated
+people know about the subject?
+
+
+
+
+INDEX
+
+
+ Alcoholic beverages, 41
+
+ Appetite, 23, 35, 41
+
+
+ Balanced ration, biological analysis of, 9
+
+ Basal metabolism, definition of, 24
+ of boys, 26, 29
+ of men, 26
+ table, 28
+ of women, 27
+
+ Butter, 8
+
+
+ Cabbage, 7
+
+ Calorie, definition, 24
+
+ Calories, cost of, 35
+
+ Calorimeter, 24
+
+ Cane sugar, 41
+
+ Carbohydrates and muscular work, 40
+
+ Chittenden, 16
+
+ Corn and pellagra, 10
+ in Italy, 7
+ quantity available, 11
+ reasons for using, 10
+ syrup, 41
+
+ Cream, use of, 11
+
+
+ Diet, a balanced, 7
+ a proper, 23
+ Italian, 7
+ of purified food-stuffs, 9
+
+ DuBois, measurement of surface area, 26
+
+
+ Economy in diet, 8
+
+ Emaciation, metabolism in, 39
+
+ Energy of sun, relation of life to, 23
+
+
+ Fasting, metabolism in, 25
+
+ Foods, cost of, 35
+
+
+ Graham bread, 16
+
+ Graham, Sylvester, 16
+
+ Green leaves in diet, 8
+
+
+ Heat production in man, 24
+
+ Hindhede's dietary, 14
+
+
+ Life, nature of, 25
+
+
+ Meat and muscle work, 18
+ desirability of, 15
+ economic production of, 19, 20
+ in hot weather, 18, 43
+ restricted diet of, in America, 18, 20
+ in England, 19
+ in Germany, 18
+ specific dynamic action of, 17
+
+ Meatless dietary, 14
+
+ Men, metabolism of, 27
+
+ Metabolism, definition of, 26
+ in emaciation, 39
+ in fasting, 25
+
+ Milk, cost of, 13
+ economic production of, 19, 20
+ food value, 8, 13, 14
+ in pellagra, 10
+
+ Mineral salts, 8, 23, 25
+
+ Muscle work, 25, 30
+ and carbohydrates, 40
+ and diet, 17
+ and fasting, 17
+ and protein, 18
+ and undernutrition, 38, 39
+
+
+ Occupation and metabolism, carrying a load, 31
+ climbing, 32
+ industrial, 33
+ posture, 30
+ running, 30-32
+ walking, 30
+
+ Oleomargarine, 12
+
+ Olive oil, 8
+
+ Overfat people, 38
+
+ Oxidation of food-stuffs, 24
+
+
+ Peanut butter, 12
+
+ Pellagra, 9
+
+ Pork, economic production of, 19, 20, 21
+
+ Potato diet, 15
+
+
+ Rules of saving and safety, 43
+
+
+ Substitution of foods, 43
+ historical, 11
+
+ Summary, 43
+
+ Surface area and heat production, 26
+
+
+ Undernutrition, 38
+ and labor, 38
+
+
+ Vegetable oils, use of, 12
+
+ Vegetarianism, 16
+
+ Vitamins, 8, 23
+
+
+ Weight, reduction of, 39
+
+ Women, metabolism of, 27
+
+
+
+
+
+End of the Project Gutenberg EBook of Food in War Time, by Graham Lusk
+
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+
+The Project Gutenberg EBook of Food in War Time, by Graham Lusk
+
+This eBook is for the use of anyone anywhere at no cost and with
+almost no restrictions whatsoever. You may copy it, give it away or
+re-use it under the terms of the Project Gutenberg License included
+with this eBook or online at www.gutenberg.org
+
+
+Title: Food in War Time
+
+Author: Graham Lusk
+
+Release Date: May 21, 2010 [EBook #32472]
+
+Language: English
+
+Character set encoding: ISO-8859-1
+
+*** START OF THIS PROJECT GUTENBERG EBOOK FOOD IN WAR TIME ***
+
+
+
+
+Produced by Tom Roch, S.D., and the Online Distributed
+Proofreading Team at http://www.pgdp.net (This file was
+produced from images produced by Core Historical Literature
+in Agriculture (CHLA), Cornell University)
+
+
+
+
+
+
+</pre>
+
+
+<div id="tp">
+<h1>FOOD IN WAR TIME</h1>
+
+<p class="center pad-tb"><i>By</i><br />
+<span class="lg">GRAHAM LUSK</span><br />
+
+<span class="xsm">PROFESSOR OF PHYSIOLOGY, CORNELL UNIVERSITY MEDICAL COLLEGE IN<br />
+NEW YORK CITY</span></p>
+
+<p class="center pad-t"><span class="sm">PHILADELPHIA AND LONDON</span><br />
+<span class="lg">W. B. SAUNDERS COMPANY</span><br />
+<span class="sm">1918</span></p>
+</div>
+
+<div id="copy" class="sm">
+<p class="center">Copyright, 1918<br />
+by<br />
+<span class="smcap">W. B. Saunders Company</span></p>
+
+<p class="center pad-t xsm">PRINTED IN AMERICA</p>
+</div>
+
+<div id="dedication">
+<p class="center">DEDICATED<br />
+TO MY<br />
+FELLOW-COUNTRYMEN</p>
+</div>
+
+<h2>CONTENTS</h2>
+
+<table id="toc" cellspacing="4" summary="Table of Contents">
+<tr><td></td><td></td><td class="xsm" align="right">PAGE</td></tr>
+<tr><td align="right">I.</td> <td class="smcap">A Balanced Diet</td> <td align="right"><a href="#Page_7">7</a></td></tr>
+<tr><td align="right">II.</td> <td class="smcap">Calories in Common Life</td> <td align="right"><a href="#Page_23">23</a></td></tr>
+<tr><td align="right">III.</td> <td class="smcap">Rules of Saving and Safety</td> <td align="right"><a href="#Page_43">43</a></td></tr>
+<tr><td></td><td class="smcap">Index</td> <td align="right"><a href="#Page_45">45</a></td></tr>
+</table>
+
+<h3>NOTE</h3>
+
+<p>The major parts of this small volume appeared under
+articles entitled "Food in War Time" in the <cite>Scientific
+Monthly</cite> and "Calories in Common Life" in Saunders'
+<cite>Medical Clinics of North America</cite>.</p>
+
+<p><span class='pagenum'><a name="Page_7" id="Page_7">[7]</a></span></p>
+
+<h1 id="first">FOOD IN WAR TIME</h1>
+
+<h2 id="chap1">I<br /><br />
+
+A BALANCED DIET</h2>
+
+<p>There is no doubt that under the conditions existing
+before the war the American people lived in a higher
+degree of comfort than that enjoyed in Europe. Hard
+times in America have always been better times than
+the best times in Europe. As a student in Munich in
+1890 I remember paying three dollars a month for my
+room, five cents daily for my breakfast, consisting of
+coffee and a roll without butter, and thirty-five cents
+for a four-course dinner at a fashionable restaurant.
+This does not sound extravagant, but it represents
+luxury when compared with the diet of the poorest
+Italian peasants of southern Italy. Two Italian scientists
+describe how this class of people live mainly on
+cornmeal, olive oil, and green stuffs and have done
+so for generations. There is no milk, cheese, or eggs
+in their dietary. Meat in the form of fat pork is taken
+three or four times a year. Cornmeal is taken as
+"polenta," or is mixed with beans and oil, or is made
+into corn bread. Cabbage or the leaves of beets are<span class='pagenum'><a name="Page_8" id="Page_8">[8]</a></span>
+boiled in water and then eaten with oil flavored with
+garlic or Spanish pepper. One of the families investigated
+consisted of eight individuals, of whom two were
+children. The annual income was 424 francs, or $84.
+Of this, three cents per day per adult was spent for food
+and the remaining three-fifths of a cent was spent for
+other purposes. Little wonder that such people have
+migrated to America, but it may strike some as astonishing
+that a race so nourished should have become the
+man power in the construction of our railways, our
+subways, and our great buildings.</p>
+
+<p>Dr. McCollum will tell you that the secret of it all
+lies in the green leaves. The quality of the protein in
+corn is poor, but the protein in the leaves supplements
+that of corn, so that a good result is obtained. Olive
+oil when taken alone is a poor fat in a nutritive sense,
+but when taken with green leaves, these furnish that
+one of the peculiar accessory substances, commonly
+known as vitamines, which is present most abundantly
+in butter-fat, and gives to butter-fat and to the fat in
+whole milk its dominant nutritive value. The green
+leaves likewise furnish another accessory substance,
+also present in milk, a substance which is soluble in
+water and which is necessary for normal life. Furthermore,
+the green leaves contain mineral matter in considerable
+quantity and in about the same proportions
+as they exist in milk.</p>
+
+<p>Here then is the message of economy in diet, corn the
+cheapest of all the cereals, a vegetable oil cheaper by<span class='pagenum'><a name="Page_9" id="Page_9">[9]</a></span>
+far than animal fat, which two materials taken together
+would bring disaster upon the human race, but if taken
+with the addition of cabbage or beet-tops they become
+capable of maintaining mankind from generation to
+generation. One can safely refer to such a diet as a
+balanced diet. Just as in the case of the modern
+experimental biological analysis of a balanced ration
+in which such a ration is given to rats and its efficiency
+as a diet is tested by its capacity to support normal
+growth and reproduction of the species, so here the
+experimental evidence is presented that corn and olive
+oil may become a sustaining diet when green leaves
+are a supplementary factor.</p>
+
+<p>This preliminary sketch shows several important
+fundamentals of food and nutrition. If one gives an
+animal a mixture of purified food-stuffs, pure protein,
+pure starch, purified fat, and a mixture of salts like the
+salts of milk, the animal will surely die. But if one
+substitutes butter-fat for purified fat, and adds a water
+solution of the natural salts of milk, the animal lives
+and thrives.</p>
+
+<p>Again, the illustration shows how corn may be so
+supplemented with other food-stuffs as to become
+extremely valuable in nutrition. It is especially
+valuable at the present time because corn is comparatively
+cheap and plentiful. But one asks how
+about pellagra? It must be here definitely stated that
+the use of cornmeal is not the cause of pellagra, provided
+the right kind of other foods be taken with it.<span class='pagenum'><a name="Page_10" id="Page_10">[10]</a></span>
+Pellagra occurs in the "corn belt" of the United States,
+and especially among the poorer classes in the south.
+The disease has developed since the introduction in
+1880 of highly perfected milling machinery which
+furnishes corn and wheat completely freed from their
+outer coverings. In Italy, where the milling of corn is
+still primitive, pellagra is not so severe as with us,
+because the corn offal is not completely removed and
+this contains the accessory food substances or vitamines
+which are essential to life. Pellagra is generally
+believed to be produced by a too exclusive use of
+highly milled corn and wheat flour in association with
+salt meats and canned goods, all of which are deficient
+in vitamines. The administration of fresh milk is
+naturally indicated. Goldberger states that after the
+addition of milk to the diet of a pellagrin, the typical
+clinical picture of pellagra no longer persists. The
+poor in the mill towns of the South lived too exclusively
+upon a corn diet without admixture of milk or fresh
+animal food or even of cabbage, and pellagra has been
+the consequence.</p>
+
+<p>The Food Administrator asks us to eat corn bread
+and save the wheat for export. It is a very small
+sacrifice to eat corn bread at one meal or more a day.
+Indian corn saved our New England ancestors from
+starvation, and we can in part substitute it for our
+wheat and send the latter abroad to spare others from
+starvation. The simplest elements of patriotism demand
+that we do this. Therefore let us cry, "Eat corn<span class='pagenum'><a name="Page_11" id="Page_11">[11]</a></span>
+bread and save the wheat for France, the home of Lafayette!"</p>
+
+<p>The United States Department of Agriculture has
+estimated that only 6.6 per cent. of our corn crop is
+used for human food, and of this, 3.4 per cent. is consumed
+by the farmers and their families.</p>
+
+<p>The substitution of foods is no new thing. We find
+that an English contemporary author thus described
+the food habits of the English people during the
+"golden days of Good Queen Bess," three hundred and
+fifty years ago:</p>
+
+<blockquote>
+<p>"The gentilitie commonly provide themselves sufficiently of
+wheat for their own tables, whylest their household and poore
+neighbours in some shires are forced to content themselves with
+rye or barleie; yea and in time of dearth many with bread made
+eyther of beanes, peason<a name="FNanchor_1_1" id="FNanchor_1_1"></a><a href="#Footnote_1_1" class="fnanchor">[1]</a> or otes, or of altogether and some
+acornes among."</p>
+</blockquote>
+
+<p>A difference between those days and ours is that the
+"gentilitie" and the "poore neighbours" are now
+asked to unite in reducing the consumption of wheat
+and to do this for the safety and welfare of all mankind.</p>
+
+<p>Another point in war economy is the use of whole
+milk in greater quantity, and the diminution of the use
+of butter and cream. Cream is bought only by the
+wealthy, but in sufficient volume to largely reduce the
+amount of whole milk available. In Germany before
+the war 15 per cent. of the milk supply of that country
+was used for the production of cream. The consequent<span class='pagenum'><a name="Page_12" id="Page_12">[12]</a></span>
+restriction of the milk supply was distinctly to the
+detriment of the health of the peasant farmers of
+Bavaria. Regarding the use of butter, a Swiss professor,
+himself an expert in nutrition, complains that
+whereas in his youth children were never given butter
+on their bread for breakfast, not even when there was
+no jam in the house, yet to-day absence of butter from
+the table is held to be indicative of direst poverty.</p>
+
+<p>If one takes a pint of whole milk daily, or even, as we
+have seen, cabbage or beet-tops in its stead, one may
+take fat in the forms of olive oil or cottonseed oil,
+corn oil, cocoanut oil, peanut butter, or in other vegetable
+oils, without possible prejudice to health.</p>
+
+<p>Osborne and Mendel, and more recently Halliburton,
+have pointed out that oleomargarine as prepared from
+beef-fat contains the fat-soluble growth-promoting
+accessory substance or vitamine which is present in
+butter-fat, but which is not contained in vegetable
+oils or in lard.</p>
+
+<p>Halliburton and Drummond summarize the practical
+results of their work as follows:</p>
+
+<blockquote>
+<p>But when we approach the subject of the dietary of the poorer
+classes, the question is a more serious one. In ordinary times the
+consumption of beef dripping, which is considerable among the
+poor, would to a large extent supply the lacking properties of a
+vegetable-oil margarine. But at the present time beef itself is
+expensive, and the opportunities of obtaining dripping are therefore
+minimized. At the same time the three important foods for
+children already enumerated (milk, butter, eggs) have risen in
+cost, so as to be almost prohibitive to those with slender incomes.<span class='pagenum'><a name="Page_13" id="Page_13">[13]</a></span>
+The vegetable-oil margarines still remain comparatively cheap,
+and the danger is that unless measures are taken to insure a proper
+milk supply for infants at a reasonable charge, these infants may
+run the risk of being fed, so far as fat is concerned, entirely upon
+an inferior brand of margarine, destitute of the growth-promoting
+accessory substance. It would be truer economy even for the
+poor to purchase smaller quantities of an oleo-oil margarine if
+they cannot afford the luxury of real butter.</p>
+</blockquote>
+
+<p>The legal restrictions placed upon the sale of oleomargarine
+and the taxes enhancing its cost, now in
+operation in many of our states, are without warrant
+in morals or common sense and should be entirely
+abolished in times like these. A well-made brand of
+oleomargarine is much more palatable than butter of
+the second grade, and certainly for cooking purposes
+is just as valuable.</p>
+
+<p>Whole milk contains everything necessary for growth
+and maintenance, protein, fat, milk-sugar, salts, water,
+and the unknown but invaluable accessory substances.
+It is of such prime importance that each family should
+have this admirable food that I have suggested that
+no family of five should ever buy meat until they have
+bought three quarts of milk. The insistence by scientific
+men upon the prime importance of milk has
+probably had something to do with its rapid enhancement
+in price. This latter factor is greatly to be
+regretted. I have often wondered why it was that a
+quart bottle of a fancy brand of milk in New York
+should cost about as much as a quart of <i>vin ordinaire</i>
+on the streets of Paris, and a quart bottle of cream as<span class='pagenum'><a name="Page_14" id="Page_14">[14]</a></span>
+much as a quart of good champagne in Paris. Despite
+much denial it appears to me that milk is not sold as
+cheaply as it ought to be. Everything should be done
+to conserve our herds of cows for the increased supply
+of whole milk and incidentally for the manufacture of
+cheese and of milk powder or of condensed milk.</p>
+
+<p>If one takes milk with other foods, meat may be
+dispensed with. Thus Hindhede advocates as ideal a
+diet consisting of bread, potatoes, fruit, and a pint of
+milk. Splendid health, both of body and mind, the
+peasants' comparative immunity to indigestion, kidney
+and liver disease, as well as an absolute immunity to
+gout, is the alluring prospect held out by the following
+dietary:</p>
+
+<table cellspacing="2" summary="">
+<tr><td>Graham bread</td> <td>1 pound</td></tr>
+<tr><td>Potatoes</td> <td>2 pounds</td></tr>
+<tr><td class="pad-r4">Vegetable fat</td> <td>½ pound</td></tr>
+<tr><td>Apples</td> <td>1½ pounds</td></tr>
+<tr><td>Milk</td> <td>1 pint</td></tr>
+</table>
+
+<p>This bread-potato-fruit diet gives a very excellent
+basis of wholesome nutrition. The potatoes yield an
+alkaline ash which has a highly solvent power over uric
+acid, and, therefore, a good supply of these valuable
+tubers is needed by the nation.</p>
+
+<p>To most Americans the dietary factors here described
+will appear to be merely attenuated hypotheses,
+fit only for philosophic contemplation. For, in real
+life, it is the roast beef of Old England, or some other
+famed equivalent, that makes its appeal. Far be it<span class='pagenum'><a name="Page_15" id="Page_15">[15]</a></span>
+from me to disparage the feast following a hunt of the
+wild boar or other feasts famed in song and story, but
+that is not the question. The question is, is meat
+necessary? The description of the Italian dietary
+answers this in the negative.</p>
+
+<p>But is meat desirable? The Italian experimenters
+believed that the addition of four or eight ounces of
+meat to the dietaries of some of their subjects increased
+their physical and also their mental powers. The
+increase in mental power due to change in diet has
+always seemed to me to be a figment of the imagination
+and not susceptible of demonstration. Thomas lived
+for twenty-four days on a diet of starch and cream,
+during four days of which time the very small quantity
+of three ounces of meat was taken daily, and he found
+his mental and muscular power unchanged.</p>
+
+<p>A remarkable experiment on the effect of a potato
+diet has been reported by Hindhede. An individual
+partook of a diet of between four and one-half and
+nine pounds of potatoes daily, with some vegetable
+margarine, during a period of nearly three hundred
+days. The rule was to eat only when hungry and then
+the potatoes could be taken at the rate of an ounce a
+minute. During the last three months (ninety-five
+days) of the experiment severe mechanical work was
+performed and the total food intake for the latter
+period amounted to 770 pounds of potatoes and 48
+pounds of margarine. What could be more simple
+than stocking the cellar with coal, potatoes, and a tub<span class='pagenum'><a name="Page_16" id="Page_16">[16]</a></span>
+of margarine! Who then would worry about the complexities
+of modern life?</p>
+
+<p>Of course, vegetarianism is no new thing. Its principal
+exponent was Sylvester Graham. It so happens
+that he was the brother of my great grandmother, and
+of him my father wrote in 1861, "long lanky Sylvester
+Vegetable Graham, leanest of men." Graham in
+1829 began the advocacy of moderation in the use of
+a diet consisting of vegetables, Graham bread, fruits,
+nuts, salts and pure water, and excluding meat, sauces,
+salads, tea, coffee, alcohol, pepper, and mustard. The
+first effect of this diet, which largely eliminated the
+flavors, was to reduce the weight through lowering the
+intake of food, but the health of many followers of the
+diet appears to have been benefited. The "Graham
+System" of dieting suffered from withering criticism
+at the time. He published in 1837 a little book entitled,
+"Bread and Bread Making," bearing on its
+cover the scriptural quotation "Bread strengtheneth
+man's heart." He says in this volume:</p>
+
+<blockquote>
+<p>But while the people of our country are entirely given up as they
+are at present, to gross and promiscuous feeding on the dead carcasses
+of animals and to the untiring pursuit of wealth, it is perhaps
+wholly vain for a single individual to raise his voice on a subject
+of this kind.</p>
+</blockquote>
+
+<p>The well-known work of Chittenden has shown that
+when the protein intake is reduced by one half or less
+of that which the average American appetite suggests,
+professional men, soldiers and athletes may be maintained
+<span class='pagenum'><a name="Page_17" id="Page_17">[17]</a></span>in the best physical condition. One of Yale's
+champion intercollegiate athletes won all the events
+of the year in which he was entered while living on a
+reduced protein or Chittenden diet. Upon such a
+diet, or less than that, the people of Germany are now
+living to-day. The principle involves eating meat
+very sparingly, taking half a piece where one would
+have formerly been taken, and using it only for its
+flavor. The wing of a chicken has little meat on it
+and yet if eaten together with vegetables it gives the
+meal a different quality than it would have had without
+it, and to this extent its use is warranted. The
+muscles are active when hard labor is done, but the
+muscles do not need meat for the performance of their
+work. A fasting man may have considerable power.
+The popular idea of the necessity of meat for a laboring
+man may be epitomized in the statement: a strong
+man can eat more meat than a weak one, hence meat
+makes a man strong. The proposition is evidently
+absurd.</p>
+
+<p>Not only is the taking of meat without beneficial
+relation to the capacity for muscular work, but, in fact,
+an exclusive meat diet results in the sensation that work
+is being accomplished with difficulty. When meat is
+metabolized it stimulates the body to a higher heat
+production, as great an increase as 55 per cent. having
+been observed in a resting man. No other food-stuff
+will accomplish so great an increase. It is especially
+worthy of note that this increase in the heat production,<span class='pagenum'><a name="Page_18" id="Page_18">[18]</a></span>
+due to the <i>specific dynamic action</i> of protein, as it is
+called, cannot be utilized in the execution of mechanical
+work. When the organism of a laborer at work in a
+hot environment is called upon to eliminate extra heat,
+due to the work he is performing, he must also eliminate
+the quota of heat which is derived from any large
+ingestion of meat. Hence, the American farmer in
+the hot weather can eat little meat.</p>
+
+<p>So far as is known, taking meat even in large excess
+is not harmful, but it represents luxury and waste.
+According to an oral statement by A. E. Taylor, the
+results of many thousand urinary analyses in Germany
+during the second year of the war showed about 7 grams
+of nitrogen excreted, which would correspond to a
+dietary containing about 45 grams of protein. As a
+matter of fact, this is the equivalent of the reduced
+protein dietary of Chittenden, and it is reported that
+no ill effects can be attributed to it. The flavor of
+meat is such that it lends itself to the easy preparation
+of a palatable meal, but this flavor could undoubtedly
+be as well obtained if the present consumption of meat
+were cut in two. It is a question of habit, but with the
+present reduced supply of meat one must adopt new
+habits. It would be highly desirable if the grain now
+fed to fatten beef were given to maintain herds of
+milch cows.</p>
+
+<p>Indulgence in meat is due to the desire for strong
+flavor. With the increased distribution of wealth, the
+demand for meat grows. Its consumption by all classes<span class='pagenum'><a name="Page_19" id="Page_19">[19]</a></span>
+had vastly increased in all prosperous countries prior
+to the war. It is well, however, to remember that its
+use has been excessive and unnecessary, and its price
+can be cut by wholesale voluntary abstinence. The
+British people have suffered no hardship in the recent
+reduction of their meat ration.</p>
+
+<p>A British Commission has reported to Parliament
+that it takes three times as much fodder to produce
+beef as it does to produce milk or pork of the same food
+value. Since cows eat chiefly hay and grass and pigs
+eat grain the cost of the production of a unit value of
+milk is much less than the cost of the same value in
+the form of pork. It takes only fifty per cent. more
+fodder to produce veal than to produce pork. Milk,
+pork, and veal have long been the established protein-containing
+foods of nations on the continent of Europe.
+According to these figures beef should cost in the market
+twice what veal costs, and yet the butcher charges
+nearly the same for the two. It would save food for
+milk production if steers were eaten as veal and not
+fed up into beef cattle. A suitable tax on all steers
+over a year old would accomplish this result. If all
+heifers were developed into milch cows and no cow
+capable of giving milk in quantity were slaughtered,
+the country would be placed on a much better basis
+than at present. It might make beef expensive, but
+there is every reason why it should be expensive. It
+would increase the dairy business, which is evidently a
+need of the times, something for the protection of the<span class='pagenum'><a name="Page_20" id="Page_20">[20]</a></span>
+welfare of mankind. For it must be remembered that
+a well-nourished cow during a single year will give in
+the form of milk as much protein and two and a half
+times the number of calories as are contained in her
+own body.</p>
+
+<p>This was written before the publication of the following
+words of Armsby, the foremost authority on animal
+nutrition:<a name="FNanchor_2_2" id="FNanchor_2_2"></a><a href="#Footnote_2_2" class="fnanchor">[2]</a></p>
+
+<blockquote>
+<p>Roast pig, to those who like it, is not only a delicacy but a
+valuable article of diet, but nevertheless, it is possible to pay too
+high a price for it, and while a proposal to restrict rather than to
+promote meat production in the present crisis may appear both
+irrational and unpatriotic it may nevertheless be in the interest
+of true food economy....</p>
+
+<p>It may be roughly estimated that about 24 per cent. of the
+energy of grain is recovered for human consumption in pork, about
+18 per cent. in milk and only about 3.5 per cent. in beef and mutton.
+In other words, the farmer who feeds bread grains to his
+stock is burning up 75 to 97 per cent. of them in order to produce
+for us a small residue of roast pig, and so is diminishing the total
+stock of human food....</p>
+
+<p>The task of the stock feeder must be to utilize through his skill
+and knowledge the inedible products of the farm and factory, such
+as hay, corn stalks, straw, bran, brewers' and distillers' grains,
+gluten feed, and the like, and to make at least a fraction of them
+available for man's use. In so doing he will be really adding to the
+food supply and will be rendering a great public service. Rather
+than seek to stimulate live stock husbandry the ideal should be to
+adjust it to the limits set by the available supply of forage crops
+and by-product feeding stuffs while, on the other hand, utilizing<span class='pagenum'><a name="Page_21" id="Page_21">[21]</a></span>
+these to the greatest practicable extent, because in this way we
+save some of what would otherwise be a total loss....</p>
+
+<p>The hog is the great competitor of man for the higher grades of
+food, and in swine husbandry as ordinarily conducted we are in
+danger of paying too much for our roast pig. Cattle and sheep,
+on the other hand, although less efficient as converters, can utilize
+products which man can not use and save some of their potential
+value as human food. From this point of view, as well as on account
+of the importance of milk to infants and invalids, the high
+economy of food production by the dairy cow deserves careful
+consideration, although of course the large labor requirement is a
+counterbalancing factor.</p>
+
+<p>At any rate, it is clear that at the present time enthusiastic
+but ill-considered "booming" of live stock production may do
+more harm than good. If it is desirable to restrict or prohibit the
+production of alcohol from grain or potatoes on the ground that it
+involves a waste of food value, the same reason calls for restriction
+of the burning-up of these materials to produce roast pig. This
+means, of course, a limited meat supply. To some of us this may
+seem a hardship. Meat, however, is by no means the essential
+that we have been wont to suppose and partial deprivation of it
+is not inconsistent with high bodily efficiency. Certainly no
+patriotic citizen would wish to insist on his customary allowance
+of roast pig at the cost of the food supply of his brothers in the
+trenches.</p>
+</blockquote>
+
+<p>The United States Department of Agriculture has
+estimated that a pig that has reached the weight of
+150 pounds should be slaughtered, because beyond
+that weight the cost of the quantity of feed required
+to maintain the animal is out of proportion to the
+gain in food value of the pig. One might, therefore,
+call a pig weighing 150 pounds a <i>maximal economic
+hog</i>.</p>
+
+<div class="footnotes">
+<h3 class="smcap">Footnotes:</h3>
+
+<div class="footnote"><p><a name="Footnote_1_1" id="Footnote_1_1"></a><a href="#FNanchor_1_1"><span class="label">[1]</span></a> An obsolete plural of pease.</p></div>
+
+<div class="footnote"><p><a name="Footnote_2_2" id="Footnote_2_2"></a><a href="#FNanchor_2_2"><span class="label">[2]</span></a> "Roast Pig," <cite>Science</cite>, 1917, xlvi, 160.</p></div>
+</div>
+
+<p><span class='pagenum'><a name="Page_22" id="Page_22">[22]</a></span></p>
+<p><span class='pagenum'><a name="Page_23" id="Page_23"><br />[23]</a></span></p>
+
+<h2>II<br /><br />
+CALORIES IN COMMON LIFE</h2>
+
+<p>A person is properly nourished who receives adequate
+energy in the form of carbohydrate and fat (and incidentally
+protein); adequate material for repair of
+wornout parts, such as protein and mineral salts; and
+the diet must contain certain accessory food substances
+known as food hormones or "vitamins." Also, it
+must contain water. But this is not all, for the food
+offered must be acceptable to the palate of the individual.
+A member of the French Scientific Commission
+which visited the United States in the summer of 1917,
+when questioned regarding the use of corn bread in
+France, replied "on ne peut pas changer des habitudes."
+The proper nutrition of an individual depends, therefore,
+not only upon a sufficient supply of food from a
+mechanistic standpoint, but also upon the reasonable
+satisfaction of the sense of appetite. These dual fundamentals
+of proper nutrition should be ever borne in mind.</p>
+
+<p>Heat from the sun enters into the composition of the
+food substances when they are being built up in the
+plants, and this energy, which is latent in the food, is
+set free in the animal body and is used as the source of
+power behind all the physical activities of the body.
+The energy can all be recovered as heat and measured
+in the form of calories. According to the principles of<span class='pagenum'><a name="Page_24" id="Page_24">[24]</a></span>
+the law of the conservation of energy, heat is not destructible.
+The understanding of the value of a calorie
+is indispensable for the comprehension of nutrition. A
+calorie is the measure of a unit of heat, or the quantity
+of heat necessary to raise a liter of water from 0° to 1°
+Centigrade. Apparatus has been invented for measuring
+the heat production of a man, an apparatus which
+is called a calorimeter or a measurer of calories. If one
+puts a man weighing, say, 156 pounds in the box of
+such an apparatus, so that he lies comfortably on a bed
+in complete muscular relaxation, and before his breakfast,
+one finds that he produces 70 calories an hour.
+Only in certain types of disease is there any variation
+from this normal, though of course the weight of the
+man makes a difference in his requirement for energy.
+If, at the same time the subject is in the box, the quantity
+of oxygen which he absorbs is measured and if certain
+other chemical analyses be carried out, one can
+calculate the exact amounts of protein, fat, and sugar
+which have been oxidized by this oxygen. Now, if one
+calculates how much heat ought to have been set free
+from the oxidation of these quantities of protein fat and
+carbohydrate, it is discovered that the heat which
+ought to have been produced is exactly that quantity
+which was measured as having been produced by the
+man. This measurement represents the <i>basal metabolism</i>
+of a man at complete rest, when his oxidative activities
+are at their lowest ebb.</p>
+
+<p>The basal metabolism as measured by 70 calories per
+hour in the case of this individual represents the sum of<span class='pagenum'><a name="Page_25" id="Page_25">[25]</a></span>
+the fuel needed&mdash;(1) to maintain the beating of the
+heart, which every minute of a man's life moves the
+blood or one-twentieth part of the weight of the body, in
+a circle through the blood-vessels; (2) to maintain the
+muscles of respiration that the blood may be purified in
+the lungs; (3) to maintain the body temperature at
+that constant level which is so characteristic that a
+slight variation signifies illness, and (4) to maintain in
+the living state the numerous tissues of the body. Any
+extraneous muscular movements are carried out in virtue
+of an increased oxidation of materials and the heat
+production rises above the level of the basal metabolism
+with increased muscular effort. For a long time
+the power for the maintenance of the human machine
+can be furnished by its own body fat, as is seen in cases
+of prolonged fasting, but usually the power is derived
+instead from the food-fuel which is taken. The great
+question in the world to-day is whether or not a sufficient
+quantity of food-fuel is available to support the
+human family. The question of calories is not an
+academic one, but an intensely practical one.</p>
+
+<p>Science strives to express itself in mathematic terms,
+and this paper is written with that end in view.</p>
+
+<p>Phenomena of life are phenomena of motion. These
+motions are maintained at the expense of chemical
+energy liberated in the oxidative breakdown of carbohydrate,
+fat, and protein. Furthermore, the protein
+structure of the body cells and the salts of the bones and
+other tissues are in a constant state of wearing down.
+The energy for the human machine and the materials<span class='pagenum'><a name="Page_26" id="Page_26">[26]</a></span>
+for its self-repair are taken in the form of food. The
+general term <i>metabolism</i> includes all the chemical activities
+which take place under the influence of living cells.</p>
+
+<p>The total quantity of heat produced by the body is a
+measure of the intensity of the oxidation of carbohydrate,
+fat, and protein within the body.</p>
+
+<p>It is important to know definitely whether there is
+any constant measure of the level of the basal metabolism
+in normal people, so that one may determine in
+cases of disease whether the heat production is normal
+or increased or decreased.</p>
+
+<p>Rubner discovered that the heat production of mammalia
+during rest was the same per square meter of surface
+whether the being was a horse, a man, a dog, or a
+mouse. The proposition has appeared so improbable
+as to call forth much antagonism. DuBois deserves
+the credit of having established this relationship for
+man beyond the possibility of a doubt. He was able
+to do this on account of his discovery of a new and accurate
+method of measuring the area of the body surface.
+It appears from his work that the <i>basal metabolism</i>
+for men between twenty and fifty years old is approximately
+40 calories per hour per square meter of
+body surface, within a ± error of 10 per cent.</p>
+
+<p>Boothby has found that the metabolism of patients
+who have recovered their health after hospital operations
+and who have been confined in the hospital between
+twenty and fifty days does not vary from the
+normal standard of DuBois.</p>
+
+<p>It has been found by DuBois that the basal metabolism
+<span class='pagenum'><a name="Page_27" id="Page_27">[27]</a></span>in boys of twelve is 25 per cent. higher than for an
+adult of the same height and weight, or <b>50</b> calories per
+square meter of body surface; and that in boys of fifteen
+the metabolism is 11 per cent. higher than for the
+adult of the same size and shape, or <b>44</b> calories per square
+meter of body surface (unpublished work of DuBois).
+These results explain the large appetites of boys.</p>
+
+<p>Women show a metabolism which is 7 per cent. lower
+than that of men, or <b>37</b> calories per hour per square
+meter of surface.</p>
+
+<p>From the charts of the average heights and weights
+of men varying between fifteen and fifty-five years old,
+given by American life insurance companies, Mr. H. V.
+Atkinson, of my laboratory, has calculated the basal
+metabolism in a table here presented. Unfortunately,
+the weights given in these statistics include clothes
+worn by the individuals. The calculated heat production,
+however, is in each case based upon the weight
+without clothes. The table is computed from the following
+values:</p>
+
+<table cellspacing="2" summary="">
+<tr><th class="pad-r4">Age in years</th>
+<th>Calories per<br /> square meter<br /> of surface</th></tr>
+
+<tr><td>15</td> <td align="center">44</td></tr>
+<tr><td>20-50</td> <td align="center">40</td></tr>
+<tr><td>55</td> <td align="center">37</td></tr>
+</table>
+
+<p>The table may also be used as follows:</p>
+
+<div class="sm">
+<p>To find the metabolism of&mdash;</p>
+
+<p class="hang">Women between twenty to fifty years, multiply values for
+man by 0.93.</p>
+
+<p class="hang">Boys of twelve to thirteen years, multiply values for boys of
+fifteen years by 1.10.</p>
+</div>
+
+<p><span class='pagenum'><a name="Page_28" id="Page_28">[28]</a></span></p>
+
+<h3>THE BASAL METABOLISM OF MEN</h3>
+
+<p><i>Calculated from values of the basal metabolism determined by the
+methods of DuBois and applied to a table showing the average weights
+of 221,819 men of different ages and heights compiled from the statistics
+of the medico-actuarial investigation of 1912.</i></p>
+
+<table id="basal" frame="hsides" rules="groups" cellspacing="2" cellpadding="2" summary="">
+<colgroup /><colgroup /><colgroup /><colgroup />
+<colgroup /><colgroup /><colgroup /><colgroup />
+<colgroup /><colgroup />
+<thead>
+<tr><th>Age.<br />
+Heat per<br />
+square meter<br />
+of surface</th>
+<th class="mid">5 ft.<br />0 in.</th>
+<th class="mid">5 ft.<br />2 in.</th>
+<th class="mid">5 ft.<br />4 in.</th>
+<th class="mid">5 ft.<br />6 in.</th>
+<th class="mid">5 ft.<br />8 in.</th>
+<th class="mid">5 ft.<br />10&nbsp;in.</th>
+<th class="mid">6 ft.<br />0 in.</th>
+<th class="mid">6 ft.<br />2 in.</th>
+<th class="mid">6 ft.<br />4 in.</th></tr>
+</thead>
+
+<tr><td></td><td>Lbs.<br />Cals.</td><td>Lbs.<br />Cals.</td><td>Lbs.<br />Cals.</td>
+<td>Lbs.<br />Cals.</td><td>Lbs.<br />Cals.</td><td>Lbs.<br />Cals.</td>
+<td>Lbs.<br />Cals.</td><td>Lbs.<br />Cals.</td><td>Lbs.<br />Cals.</td></tr>
+
+<tr align="right"><td align="left">15 years</td>
+<td>107</td><td>112</td><td>118</td>
+<td>126</td><td>134</td><td>142</td>
+<td>152</td><td>162</td><td>172</td></tr>
+<tr class="b"><td class="no-b">44 calories</td>
+<td>1510</td><td>1584</td><td>1658</td>
+<td>1753</td><td>1837</td><td>1922</td><td>2006</td>
+<td>2096</td><td>2186</td></tr>
+
+<tr align="right"><td align="left" class="p-t">20 years</td>
+<td class="p-t">117</td><td class="p-t">122</td><td class="p-t">128</td>
+<td class="p-t">136</td><td class="p-t">144</td><td class="p-t">152</td>
+<td class="p-t">161</td><td class="p-t">171</td><td class="p-t">181</td></tr>
+<tr align="right" class="b"><td align="left" class="no-b">40 calories</td>
+<td>1430</td><td>1498</td><td>1565</td>
+<td>1647</td><td>1719</td><td>1796</td>
+<td>1868</td><td>1949</td><td>2035</td></tr>
+
+<tr align="right"><td align="left" class="p-t">25 years</td>
+<td class="p-t">122</td><td class="p-t">126</td><td class="p-t">133</td>
+<td class="p-t">141</td><td class="p-t">149</td><td class="p-t">157</td>
+<td class="p-t">167</td><td class="p-t">179</td><td class="p-t">189</td></tr>
+<tr align="right" class="b"><td align="left" class="no-b">40 calories</td>
+<td>1459</td><td>1517</td><td>1594</td>
+<td>1671</td><td>1738</td><td>1820</td>
+<td>1896</td><td>1992</td><td>2083</td></tr>
+
+<tr align="right"><td align="left" class="p-t">30 years</td>
+<td class="p-t">126</td><td class="p-t">130</td><td class="p-t">136</td>
+<td class="p-t">144</td><td class="p-t">152</td><td class="p-t">161</td>
+<td class="p-t">172</td><td class="p-t">184</td><td class="p-t">196</td></tr>
+<tr align="right" class="b"><td align="left" class="no-b">40 calories</td>
+<td>1478</td><td>1536</td><td>1604</td>
+<td>1685</td><td>1757</td><td>1839</td>
+<td>1920</td><td>2007</td><td>2112</td></tr>
+
+<tr align="right"><td align="left" class="p-t">35 years</td>
+<td class="p-t">128</td><td class="p-t">132</td><td class="p-t">138</td>
+<td class="p-t">146</td><td class="p-t">155</td><td class="p-t">165</td>
+<td class="p-t">176</td><td class="p-t">189</td><td class="p-t">201</td></tr>
+<tr align="right" class="b"><td align="left" class="no-b">40 calories</td>
+<td>1488</td><td>1556</td><td>1613</td>
+<td>1695</td><td>1767</td><td>1853</td>
+<td>1939</td><td>2035</td><td>2136</td></tr>
+
+<tr align="right"><td align="left" class="p-t">40 years</td>
+<td class="p-t">131</td><td class="p-t">135</td><td class="p-t">141</td>
+<td class="p-t">149</td><td class="p-t">158</td><td class="p-t">168</td>
+<td class="p-t">180</td><td class="p-t">193</td><td class="p-t">206</td></tr>
+<tr align="right" class="b"><td align="left" class="no-b">40 calories</td>
+<td>1498</td><td>1565</td><td>1623</td>
+<td>1709</td><td>1781</td><td>1863</td>
+<td>1959</td><td>2055</td><td>2160</td></tr>
+
+<tr align="right"><td align="left" class="p-t">45 years</td>
+<td class="p-t">133</td><td class="p-t">137</td><td class="p-t">143</td>
+<td class="p-t">151</td><td class="p-t">160</td><td class="p-t">170</td>
+<td class="p-t">182</td><td class="p-t">195</td><td class="p-t">209</td></tr>
+<tr align="right" class="b"><td align="left" class="no-b">40 calories</td>
+<td>1507</td><td>1570</td><td>1632</td>
+<td>1719</td><td>1791</td><td>1872</td>
+<td>1968</td><td>2064</td><td>2169</td></tr>
+
+<tr align="right"><td align="left" class="p-t">50 years</td>
+<td class="p-t">134</td><td class="p-t">138</td><td class="p-t">144</td>
+<td class="p-t">152</td><td class="p-t">161</td><td class="p-t">171</td>
+<td class="p-t">183</td><td class="p-t">197</td><td class="p-t">211</td></tr>
+<tr align="right" class="b"><td align="left" class="no-b">40 calories</td>
+<td>1517</td><td>1575</td><td>1642</td>
+<td>1724</td><td>1796</td><td>1881</td>
+<td>1973</td><td>2074</td><td>2184</td></tr>
+
+<tr align="right"><td align="left" class="p-t">55 years</td>
+<td class="p-t">135</td><td class="p-t">139</td><td class="p-t">145</td>
+<td class="p-t">153</td><td class="p-t">163</td><td class="p-t">173</td>
+<td class="p-t">184</td><td class="p-t">198</td><td class="p-t">212</td></tr>
+<tr align="right" class="b"><td align="left" class="no-b">37 calories</td>
+<td>1449</td><td>1485</td><td>1548</td>
+<td>1620</td><td>1692</td><td>1773</td>
+<td>1854</td><td>1949</td><td>2052</td></tr>
+</table>
+
+<p><span class='pagenum'><a name="Page_29" id="Page_29">[29]</a></span></p>
+<p>The basal metabolism of an average boy of thirteen
+years of age weighing 80 pounds and of a height of 4
+feet, 10 inches, may be calculated as 1525 calories per
+day. This is the same as that of a man twenty-five
+years old, weighing 126 pounds and 5 feet, 2 inches tall.</p>
+
+<p>A boy thirteen years old and weighing 156 pounds,
+his height being 6 feet, 1 inch (there are such cases),
+would have a basal metabolism of 2300 calories, or
+larger than that of any grown man given in the table&mdash;larger
+than a man weighing 211 pounds and 6 feet, 4
+inches in height. I personally know a boy of this age
+and size. His parents are said to have sent him to
+boarding school in order to reduce their food bills.</p>
+
+<p>It is evident from this discussion that the food requirement
+of boys over twelve years old is about the
+same as that of men. The emaciation of the children
+of the poor probably reduces their requirement of food.
+It is not generally recognized that the boy needs as
+much food as his father. The requirements of girls
+have not been investigated, but they probably need as
+much as their mothers.</p>
+
+<p>These data will give with close scientific precision the
+<i>minimal requirement for energy</i> which is necessary for
+the maintenance of the bed-ridden.</p>
+
+<p>Ordinary life, however, is not constituted after this
+fashion. "By the sweat of thy brow shalt thou eat
+bread."</p>
+
+<p>From the work of F. G. Benedict one may calculate
+the increase in the basal metabolism, as follows:</p>
+
+<p><span class='pagenum'><a name="Page_30" id="Page_30">[30]</a></span></p>
+
+<table cellspacing="2" summary="">
+<tr><th>Occupation</th>
+<th>Increase in<br /> the basal<br /> metabolism<br /> in per cent.</th></tr>
+<tr><td>Sitting</td><td align='right' class="pad-r2">5</td></tr>
+<tr><td>Standing, relaxed</td><td align='right' class="pad-r2">10</td></tr>
+<tr><td>Standing, hand on a staff</td><td align='right' class="pad-r2">11</td></tr>
+<tr><td>Standing, leaning on support</td><td align='right' class="pad-r2">3</td></tr>
+<tr><td>Standing, "attention"</td><td align='right' class="pad-r2">14</td></tr>
+</table>
+
+<p>If one wishes to determine from the basal metabolism
+table the heat production of a person who is confined
+to his room, one should add to the metabolism of the
+twenty-four hours the increase above the basal for
+those hours of the day during which he is sitting in a
+chair or standing.</p>
+
+<p>Passing to a consideration of the subject of mechanical
+work done by a man, one finds that it requires about
+1.1 calories to transport a pound of body weight three
+miles during an hour, and that increasing power must
+be generated if the speed is increased above this rate of
+<i>maximal economic velocity</i>.</p>
+
+<p>These relations are shown below:</p>
+
+<table cellspacing="2" summary="">
+<tr><th>Rate of movement</th>
+<th>Extra calories<br />
+per hour required<br />
+to move 1 pound<br />
+of body</th></tr>
+<tr><td>Walking 3 miles per hour</td><td align='right' class="pad-r3">1.1</td></tr>
+<tr><td>Walking 5.3 miles per hour</td><td align='right' class="pad-r3">3.6</td></tr>
+<tr><td>Running 5.3 miles per hour</td><td align='right' class="pad-r3">3.1</td></tr>
+</table>
+
+<p>If one wishes to determine the heat production of a
+man weighing 156 pounds and 5 feet, 7 inches in height,
+and who is walking or running, the following calculations
+can be made:</p>
+<p><span class='pagenum'><a name="Page_31" id="Page_31">[31]</a></span></p>
+
+<table cellspacing="2" summary="">
+<tr><th class="pad-r4">Rate of travel per hour in miles</th>
+<th>3<a name="FNanchor_3_3" id="FNanchor_3_3"></a><a href="#Footnote_3_3" class="fnanchor">[3]</a><br /> Cals.</th>
+<th>5.3<a name="FNanchor_3b_3b" id="FNanchor_3b_3b"></a><a href="#Footnote_3b_3b" class="fnanchor">[3]</a><br /> Cals.</th>
+<th>5.3<a name="FNanchor_4_4" id="FNanchor_4_4"></a><a href="#Footnote_4_4" class="fnanchor">[4]</a><br /> Cals.</th></tr>
+
+<tr><td class="pad-r4">Metabolism for transporting 156 pounds</td><td align='right'>172</td><td align='right'>562</td><td align='right'>484</td></tr>
+<tr><td>Basal metabolism</td><td align='right'>70</td><td align='right'>70</td><td align='right'>70</td></tr>
+<tr><td>Add for standing</td><td align='right'>7</td><td align='right'>7</td><td align='right'>7</td></tr>
+
+<tr><td></td><td class="total" align='right'>249</td><td class="total" align='right'>639</td><td class="total" align='right'>561</td></tr>
+</table>
+
+<p>If the man's food cost 10 cents a thousand calories,
+it may be calculated that he would have to walk over
+eight miles at a rate of three miles per hour in order to
+save money when he pays a 5-cent carfare. (This,
+however, does not include the cost of shoe leather.)</p>
+
+<p>The carrying of a load of 44 pounds is done at the
+same expenditure of energy as the carrying of one's own
+body weight when the rate is three miles an hour, so
+the soldier's equipment would call for the added expenditure
+of 48 calories (44 × 1.1), making his total
+hourly expenditure of energy nearly 300 calories (249 + 44)
+during a hike on a level road. His daily requirement
+for energy might be:</p>
+
+<table cellspacing="2" summary="">
+<tr><td></td><th>Calories</th></tr>
+<tr><td>Sleeping 8 hours at 70 calories per hour</td><td align='right' class="pad-r1">560</td></tr>
+<tr><td>Resting in camp 6 hours at 77 calories per hour</td><td align='right' class="pad-r1">462</td></tr>
+<tr><td class="pad-r4">Hike of 30 miles, 10 hours at 300 calories per hour</td><td align='right' class="pad-r1">3000</td></tr>
+
+<tr><td></td><td class="total pad-r1" align='right'>4022</td></tr>
+</table>
+
+<p>This would be the heat production of a soldier on a
+day of a "forced march." The ordinary day's march is
+only fifteen miles.</p>
+
+<p><span class='pagenum'><a name="Page_32" id="Page_32">[32]</a></span></p><p>This assumes a level road. If, however, there are
+hills to climb and the body weight and the pack are
+lifted 1000 feet during the hike, this is done at the additional
+expense of approximately 0.96 calory of energy
+per pound of weight lifted. If the man weighed 156
+pounds and the pack 44 pounds, the additional fuel requirement
+would be 192 calories (200 × 0.96). The
+total energy requirement for this kind of a hike would
+have been 4200 calories. Walking down hill is accomplished
+at an expenditure of slightly less energy than
+walking on the level, but this factor need not concern
+one.</p>
+
+<p>Supposing, however, this individual were running,
+lightly clad, on a level road in a race for a distance of 40
+miles at the rate of 5.3 miles per hour, he would complete
+the distance in seven hours and thirty-three minutes,
+which is a reasonable record. His metabolism
+might thus be calculated:</p>
+
+<table cellspacing="2" summary="">
+<tr><td></td><th>Calories</th></tr>
+<tr><td>Sleeping 10 hours at 70 calories per hour</td><td align='right' class="pad-r1">700</td></tr>
+<tr><td>Resting 6 hours, 23 minutes, at 77 calories per hour</td><td align='right' class="pad-r1">497</td></tr>
+<tr><td class="pad-r4">Running 7 hours, 33 minutes, at 561 calories per hour</td><td align='right' class="pad-r1">4236</td></tr>
+
+<tr><td></td><td class="total pad-r1" align='right'>5433</td></tr>
+</table>
+
+<p>It is a matter of record that a man has run between
+Milwaukee and Chicago, a distance of 80 miles, in about
+fifteen hours. Such an amount of work would have required
+over 9000 calories for the day.</p>
+
+<p><span class='pagenum'><a name="Page_33" id="Page_33">[33]</a></span></p><p>These calculations are all based upon experimental
+results obtained in various laboratories in different
+parts of the world and can be accepted as being free
+from any gross error.</p>
+
+<p>It is evident that the energy requirement is proportional
+to the amount of mechanical energy expended.</p>
+
+<p>One may turn now to the fuel needs in terms of calories
+in certain industrial pursuits. According to
+Becker and Hämäläinen, the quantity of extra metabolism
+per hour required in various pursuits is as follows:</p>
+
+<table cellspacing="2" summary="">
+
+<tr><td></td><th>Extra calories of<br />
+metabolism per<br />
+hour due to<br />
+occupation</th></tr>
+
+<tr><td>Occupations of women:</td><td></td></tr>
+<tr><td class="pad-l2">Seamstress</td> <td align="center">6</td></tr>
+<tr><td class="pad-l2">Typist<a name="FNanchor_5_5" id="FNanchor_5_5"></a><a href="#Footnote_5_5" class="fnanchor">[5]</a></td>
+ <td align="center">24</td></tr>
+<tr><td class="pad-l2 pad-r4">Seamstress using sewing machine</td> <td align="center">24-57</td></tr>
+<tr><td class="pad-l2">Bookbinder</td> <td align="center">38-63</td></tr>
+<tr><td class="pad-l2">Housemaid</td> <td align="center">81-157</td></tr>
+<tr><td class="pad-l2">Washerwoman</td> <td align="center">124-214</td></tr>
+
+<tr><td>Occupations of men:</td><td></td></tr>
+<tr><td class="pad-l2">Tailor</td> <td align="center">44</td></tr>
+<tr><td class="pad-l2">Bookbinder</td> <td align="center">81</td></tr>
+<tr><td class="pad-l2">Shoemaker</td> <td align="center">90</td></tr>
+<tr><td class="pad-l2">Carpenter</td> <td align="center">116-164</td></tr>
+<tr><td class="pad-l2">Metal worker</td> <td align="center">141</td></tr>
+<tr><td class="pad-l2">Painter (of furniture)</td> <td align="center">145</td></tr>
+<tr><td class="pad-l2">Stonemason</td> <td align="center">300</td></tr>
+<tr><td class="pad-l2">Man sawing wood</td> <td align="center">378</td></tr>
+</table>
+
+<p>To use this table one may seek the basal metabolism
+of the individual, add 10 per cent. for sixteen hours of<span class='pagenum'><a name="Page_34" id="Page_34">[34]</a></span>
+wakefulness when the person is sitting or standing, and
+then multiply the factors in the last table by the numbers
+of hours of work. For example, if one takes the
+individual weighing 156 pounds, one obtains the following
+requirements of energy if his business were that of a
+tailor and he worked eight hours a day:</p>
+
+<table cellspacing="2" summary="">
+<tr><td></td><th>Calories</th></tr>
+<tr><td>Sleeping 8 hours at 70 calories per hour</td><td align='right' class="pad-r1">560</td></tr>
+<tr><td>Awake 16 hours at 77 calories per hour</td><td align='right' class="pad-r1">1232</td></tr>
+<tr><td class="pad-r4">Add for work as tailor 8 hours at 44 calories</td><td align='right' class="pad-r1">352</td></tr>
+<tr><td></td><td class="total pad-r1" align='right'>2144</td></tr>
+</table>
+
+<p>After this fashion one might calculate his food requirements
+had he followed occupations other than
+that of tailor:</p>
+
+<table cellspacing="2" summary="">
+
+<tr><th>Occupation</th>
+<th>Calories of<br />
+metabolism<br />
+per day</th></tr>
+
+<tr><td>Bookbinder</td> <td align="center">2440</td></tr>
+<tr><td>Shoemaker</td> <td align="center">2510</td></tr>
+<tr><td>Carpenter</td> <td align="center">3100</td></tr>
+<tr><td>Metal worker</td> <td align="center">2900</td></tr>
+<tr><td>Painter</td> <td align="center">2950</td></tr>
+<tr><td>Stonemason</td> <td align="center">4200</td></tr>
+<tr><td class="pad-r4">Man sawing wood</td> <td align="center">4800</td></tr>
+</table>
+
+<p>These figures make no allowance for walking to or
+from the place of employment.</p>
+
+<p>The data here given are inadequate to cover the industrial
+situation, but they show clearly that heavy work
+cannot be accomplished without a sufficient amount
+of food-fuel.</p>
+
+<p>The food-fuel with which to accomplish work is<span class='pagenum'><a name="Page_35" id="Page_35">[35]</a></span>
+necessary not only for the soldier, but for the workman
+behind the line, and it should be adequate in quantity,
+satisfactory in quality, and not exorbitant in cost.</p>
+
+<p>In virtue of the world-wide scarcity of food, the work
+of the individual should be worthy of the food which he
+eats.</p>
+
+<p>Tables showing the cost of various wholesome food-stuffs
+about July 1, 1917, are here reproduced for the
+benefit of the reader. The tables were prepared by
+Dr. F. C. Gephart and issued by the Department of
+Health of the City of New York in a leaflet edited by
+Doctors Holt, La Fetra, Pisek, and Lusk on the subject
+of food for children. If the world is seeking after energy
+in the form of food-fuel, the world is rightly entitled
+to understand the value of its purchases. It
+must be clearly understood that people are always destined
+to look with hopeful anticipation toward the enjoyment
+of a meal. They will instinctively "eat calories"
+just as they instinctively "eat pounds." They
+<i>buy pounds</i> of food, and they could buy more intelligently
+if they knew the energy value of what they buy.</p>
+
+<table class="cost" cellspacing="2" summary="">
+<col width="54%"></col>
+<col width="20%"></col>
+<col width="26%"></col>
+<tr><td></td><th align="center">Cost of 1000 calories, cents</th>
+<th align="center" class="pad-l2">Price per pound, cents</th></tr>
+
+<tr><td align="left" colspan="3"><span class="smcap">Table 1</span>&mdash;<i>Cost of Fats.</i></td></tr>
+<tr><td class="item">Cottonseed oil</td> <td>7.3</td> <td>31</td></tr>
+<tr><td class="item">Oleomargarine</td> <td>8.5</td> <td>30</td></tr>
+<tr><td class="item">Peanut butter</td> <td>8.8</td> <td>25</td></tr>
+<tr><td class="item">Butter</td> <td>11.9</td> <td>43</td></tr>
+<tr><td class="item">Olive oil</td> <td>12.1</td> <td>51</td></tr>
+<tr><td class="item">Bacon</td> <td>13.8</td> <td>37</td></tr>
+<tr><td class="item">Bacon, sliced, in jars</td> <td>23.8</td> <td>65</td></tr>
+<tr><td class="item">Cream (extra heavy, 40 per cent.)</td> <td>37.7</td> <td>65 (1 pint)</td></tr>
+</table>
+
+<p><span class='pagenum'><a name="Page_36" id="Page_36">[36]</a></span></p>
+
+<table class="cost" cellspacing="2" summary="">
+<col width="54%"></col>
+<col width="20%"></col>
+<col width="26%"></col>
+<tr><td align="left" colspan="3"><span class="smcap">Table 2</span>&mdash;<i>Cost of Cereals.</i></td></tr>
+<tr><td class="item">Cornmeal, in bulk</td> <td>3.6</td> <td>6</td></tr>
+<tr><td class="item">Hominy, in bulk</td> <td>3.6</td> <td>6</td></tr>
+<tr><td class="item">Broken rice, in bulk</td> <td>3.7</td> <td>6</td></tr>
+<tr><td class="item">Oatmeal, in bulk</td> <td>3.8</td> <td>7</td></tr>
+<tr><td class="item">Samp, in bulk</td> <td>4.2</td> <td>7</td></tr>
+<tr><td class="item">Quaker Oats, in package</td> <td>4.4</td> <td>8</td></tr>
+<tr><td class="item">Macaroni, in package</td> <td>4.5</td> <td>8</td></tr>
+<tr><td class="item">Wheat flour, in bulk</td> <td>4.6</td> <td>8</td></tr>
+<tr><td class="item">Malt breakfast food, in package</td> <td>4.8</td> <td>8</td></tr>
+<tr><td class="item">Pettijohn, in package</td> <td>5.3</td> <td>9</td></tr>
+<tr><td class="item">Cream of Wheat, in package</td> <td>5.7</td> <td>10</td></tr>
+<tr><td class="item">Farina, in package</td> <td>5.9</td> <td>10</td></tr>
+<tr><td class="item">Cracked wheat, in bulk</td> <td>5.9</td> <td>10</td></tr>
+<tr><td class="item">Pearl barley, in package</td> <td>6.0</td> <td>10</td></tr>
+<tr><td class="item">Barley flour, in bulk</td> <td>6.1</td> <td>10</td></tr>
+<tr><td class="item">Whole rice, in bulk</td> <td>6.1</td> <td>10</td></tr>
+<tr><td class="item">Wheatena, in package</td> <td>8.1</td> <td>14</td></tr>
+</table>
+
+<table class="cost" cellspacing="2" summary="">
+<col width="54%"></col>
+<col width="20%"></col>
+<col width="26%"></col>
+<tr><td align="left" colspan="3"><span class="smcap">Table 3</span>&mdash;<i>Cost of Ready-to-serve Cereals.</i></td></tr>
+<tr><td class="item">Shredded Wheat Biscuit</td> <td>7.8</td> <td>13</td></tr>
+<tr><td class="item">Grape-nuts</td> <td>8.6</td> <td>15</td></tr>
+<tr><td class="item">Force</td> <td>9.4</td> <td>16</td></tr>
+<tr><td class="item">Corn Flakes</td> <td>11.7</td> <td>20</td></tr>
+<tr><td class="item">Puffed rice</td> <td>23.5</td> <td>38</td></tr>
+</table>
+
+<table class="cost" cellspacing="2" summary="">
+<col width="54%"></col>
+<col width="20%"></col>
+<col width="26%"></col>
+<tr><td align="left" colspan="3"><span class="smcap">Table 4</span>&mdash;<i>Cost of Vegetables.</i></td></tr>
+<tr><td class="item">White potatoes</td> <td>12.9</td> <td>4.0</td></tr>
+<tr><td class="item">Turnips</td> <td>20.0</td> <td>2.5</td></tr>
+<tr><td class="item">New beets</td> <td>27.6</td> <td>5.0</td></tr>
+<tr><td class="item">Onions</td> <td>29.3</td> <td>6.0</td></tr>
+<tr><td class="item">Spinach</td> <td>30.0</td> <td>3.3</td></tr>
+<tr><td class="item">Green peas</td> <td>39.2</td> <td>10.0</td></tr>
+<tr><td class="item">Lima beans</td> <td>39.2</td> <td>10.0</td></tr>
+<tr><td class="item"><span class='pagenum'><a name="Page_37" id="Page_37">[37]</a></span>
+Cauliflower</td> <td>42.9</td> <td>6.0</td></tr>
+<tr><td class="item">Carrots</td> <td>50.0</td> <td>8.0</td></tr>
+<tr><td class="item">String-beans</td> <td>55.6</td> <td>10.0</td></tr>
+<tr><td class="item">Squash</td> <td>76.2</td> <td>8.0</td></tr>
+<tr><td class="item">Lettuce</td> <td>89.4</td> <td>7.0</td></tr>
+<tr><td class="item">Celery</td> <td>214.0</td> <td>15.0</td></tr>
+</table>
+
+<table class="cost" cellspacing="2" summary="">
+<col width="54%"></col>
+<col width="20%"></col>
+<col width="26%"></col>
+<tr><td align="left" colspan="3"><span class="smcap">Table 5</span>&mdash;<i>Cost of Breadstuffs.</i></td></tr>
+<tr><td class="item">Ginger-snaps</td> <td>6.3</td> <td>12.0</td></tr>
+<tr><td class="item">Graham bread</td> <td>8.2</td> <td>10.3</td></tr>
+<tr><td class="item">White bread</td> <td>8.5</td> <td>10.3</td></tr>
+<tr><td class="item">Rye bread</td> <td>8.7</td> <td>10.3</td></tr>
+<tr><td class="item">Graham crackers</td> <td>9.2</td> <td>18.0</td></tr>
+<tr><td class="item">Soda crackers</td> <td>9.4</td> <td>18.0</td></tr>
+<tr><td class="item">French rolls</td> <td>10.8</td> <td>14.0</td></tr>
+<tr><td class="item">Uneeda Biscuit</td> <td>12.4</td> <td>24.0</td></tr>
+</table>
+
+<table class="cost" cellspacing="2" summary="">
+<col width="54%"></col>
+<col width="20%"></col>
+<col width="26%"></col>
+<tr><td align="left" colspan="3"><span class="smcap">Table 6</span>&mdash;<i>Cost of Proteins.</i></td></tr>
+<tr><td class="item">Milk (Grade A)</td> <td>20.0</td> <td>13.0 (1 quart)</td></tr>
+<tr><td class="item">Roast beef (rib)</td> <td>23.4</td> <td>26.0</td></tr>
+<tr><td class="item">Buttermilk</td> <td>26.5</td> <td>9.0 (1 quart)</td></tr>
+<tr><td class="item">Lamb chops (loin)</td> <td>32.7</td> <td>43.0</td></tr>
+<tr><td class="item">Lamb chops (rib)</td> <td>34.9</td> <td>38.0</td></tr>
+<tr><td class="item">Young codfish (fresh)</td> <td>38.6</td> <td>12.0</td></tr>
+<tr><td class="item">Chicken (roasting)</td> <td>41.3</td> <td>32.0</td></tr>
+<tr><td class="item">Eggs</td> <td>44.7</td> <td>45.0 (1 dozen)</td></tr>
+<tr><td class="item">Beefsteak (round)</td> <td>50.4</td> <td>34.0</td></tr>
+</table>
+
+<table class="cost" cellspacing="2" summary="">
+<col width="54%"></col>
+<col width="20%"></col>
+<col width="26%"></col>
+<tr><td align="left" colspan="3"><span class="smcap">Table 7</span>&mdash;<i>Cost of Fruit.</i></td></tr>
+<tr><td class="item" colspan="3">Fresh (in season):</td></tr>
+<tr><td align="left" class="pad-l2">Bananas</td> <td>23.0</td> <td>6</td></tr>
+<tr><td align="left" class="pad-l2">Apples</td> <td>23.7</td> <td>5</td></tr>
+<tr><td align="left" class="pad-l2">Oranges</td> <td>65.0</td> <td>10</td></tr>
+<tr><td class="item" colspan="3"><span class='pagenum'><a name="Page_38" id="Page_38">[38]</a></span>
+Dried:</td></tr>
+<tr><td align="left" class="pad-l2">Prunes</td> <td>8.4</td> <td>10</td></tr>
+<tr><td align="left" class="pad-l2">Apples</td> <td>11.1</td> <td>15</td></tr>
+<tr><td align="left" class="pad-l2">Peaches</td> <td>12.5</td> <td>15</td></tr>
+<tr><td align="left" class="pad-l2">Apricots</td> <td>15.5</td> <td>20</td></tr>
+</table>
+
+<table class="cost" cellspacing="2" summary="">
+<col width="54%"></col>
+<col width="20%"></col>
+<col width="26%"></col>
+<tr><td align="left" colspan="3"><span class="smcap">Table 8</span>&mdash;<i>Cost of Syrup.</i></td></tr>
+<tr><td class="item">Cane sugar</td> <td>4.5</td> <td>8</td></tr>
+<tr><td class="item">Karo corn syrup</td> <td>5.7</td> <td>8</td></tr>
+</table>
+
+<p>A British scientific commission has reported to Parliament
+that if the workman be undernourished he may,
+by grit and pluck, continue his labor for a certain time,
+but in the end his work is sure to fail. It makes no
+difference what the nutritive condition of the person is,
+if a certain job involving muscular effort is to be done it
+always requires a definite amount of extra food-fuel
+to do it. Rubner, the greatest German authority on
+nutrition, excited grossly inappropriate hilarity in the
+comic press of his country by showing that a poor
+woman who waited several hours in line in order to receive
+the dole of fat allowed her by the government
+actually consumed more of her own body fat in the
+effort of standing during those hours than she obtained
+in the fat given her when her turn to receive it came at
+last.</p>
+
+<p>A method by which food-fuel can readily be saved
+with benefit to the nation and to the individual is for
+the overfat to reduce their weight. This has been done
+with drastic severity in Germany. I have heard from<span class='pagenum'><a name="Page_39" id="Page_39">[39]</a></span>
+unquestioned sources how a man who had weighed 240
+pounds lost 90 pounds since the war began; how a corpulent
+professor at Breslau lost greatly in weight, but
+during the second summer of the war regained his
+former corpulence during a sojourn in the Bavarian
+Tyrol, a joy not now tolerated; and how an American
+woman lost 40 pounds in weight last winter in Dresden.
+There is every reason why a man who is overweight at
+the age of fifty should reduce his weight until he reaches
+the weight he was when he was thirty-five. According
+to Dr. Fisk he is a better insurance risk if after thirty-five
+he is under the weight which is the average for
+those of his years. Reduction in weight reduces the
+basal requirement for food, and reduces the amount of
+fuel needed for moving the body in walking. The most
+extreme illustration of the effect of emaciation upon the
+food requirement is afforded by a woman who after
+losing nearly half of her body weight was found to need
+only 40 per cent. of the food-fuel formerly required.
+This represented a state not far from the border line of
+death from starvation, but it indicates how a community
+may long support itself on restricted rations. It
+must be strictly borne in mind, however, that if any external
+muscular work is to be accomplished it can only
+be effected at the expense of a given added quantity of
+food-fuel, whether the person be fat or thin.</p>
+
+<p>It is not at all difficult to reduce the body weight.
+Suppose a clergyman or a physician requires 2500 calories
+daily in the accomplishment of his work and takes<span class='pagenum'><a name="Page_40" id="Page_40">[40]</a></span>
+2580 calories per day instead. The additional 80
+calories is the equivalent of a butter ball weighing a
+third of an ounce, or an ounce of bread or half a glass of
+milk. It would seem to be the height of absurdity to
+object to such a trifle. But if this excess in food intake
+be continued for a year, the person will gain nine
+pounds and at the end of ten years ninety pounds.
+Such a person would find that he required a constantly
+increasing amount of food in order to transport his constantly
+increasing weight. In instances of this sort a
+motto may be applied which I heard the last time I was
+in Washington: "Do not stuff your husband, husband
+your stuff."</p>
+
+<p>Now it is evident that, if instead of taking more than
+the required amount of food a little less be taken than is
+needed, the balance of food-fuel must be obtained from
+the reserves of the body's own supply of fat. By cutting
+down the quantity of fat taken, or by eliminating a
+glass of beer or a drink of whiskey, and not compensating
+for the loss of these by adding other food stuffs,
+the weight may be gradually reduced. The amusing
+little book entitled "Eat and Grow Thin" recommends
+a high protein and almost carbohydrate-free diet for
+the accomplishment of this purpose, but its advice has
+made so many of my friends so utterly miserable that
+I am sure in the end it will counteract its own message.</p>
+
+<p>The work of the world is accomplished in largest part
+by the oxidation of carbohydrates, that is to say, of<span class='pagenum'><a name="Page_41" id="Page_41">[41]</a></span>
+sugars and starches. Bread, corn, rice, macaroni,
+cane-sugar, these are <i>par excellence</i> the food-fuels of
+the human machine. In the dinner-pail of the laborer
+they testify as to the source of his power. They are
+convertible into glucose in the body, which glucose
+gives power to the human machine. They may be used
+for the production of work without of themselves increasing
+the heat production of the worker, as happens
+after meat ingestion. (<a href="#Page_18">See p. 18.</a>) Fat also may be
+used as a source of energy, but unless carbohydrate is
+present a person can not work up to his fullest capacity.</p>
+
+<p>Cane-sugar is a valuable condiment, and when taken
+in small quantities every half hour, may delay the onset
+of fatigue. It is more largely used in the United States
+than in other countries in the world. As a substitute,
+glucose may be used. This is found in grapes and in
+raisins and it is also produced in large quantities by the
+hydrolysis of starch and sold under the commercial
+name of corn syrup or Karo. This substance is entirely
+wholesome and may be freely employed in the
+place of sugar, which is scarce.</p>
+
+<p>As to the use of alcoholic beverages, the question resolves
+itself into several factors. Alcohol gives a sham
+sensation of added force and in reality decreases the
+ability to do work. Alcohol is the greatest cause of
+misery in the world, and as Cushny has put it, if alcohol
+had been a new synthetic drug introduced from Germany,
+its importation would long since have been forbidden.
+On the other hand, good beer makes poor food<span class='pagenum'><a name="Page_42" id="Page_42">[42]</a></span>
+taste well. It also frequently leads to overeating.
+The cure for bad food is to have our daughters taught
+how to cook a decent meal. After that we can talk
+about prohibition.</p>
+
+<p>In some parts of the world whole nations are starving
+to death. In most countries of the world people are
+short of food. In America we have more food than in
+any other land, and we must, therefore, be careful in our
+abundance, saving it to the utmost, while, at the same
+time, conserving the safety of our own people.</p>
+
+<div class="footnotes">
+<h3 class="smcap">Footnotes:</h3>
+<div class="footnote"><p><a name="Footnote_3_3" id="Footnote_3_3"></a><a name="Footnote_3b_3b" id="Footnote_3b_3b"></a>
+<a href="#FNanchor_3_3"><span class="label">[3]</span></a> Walking.</p></div>
+
+<div class="footnote"><p><a name="Footnote_4_4" id="Footnote_4_4"></a><a href="#FNanchor_4_4"><span class="label">[4]</span></a> Running.</p></div>
+
+<div class="footnote"><p><a name="Footnote_5_5" id="Footnote_5_5"></a><a href="#FNanchor_5_5"><span class="label">[5]</span></a> Observation of Carpenter.</p></div>
+</div>
+
+<p><span class='pagenum'><a name="Page_43" id="Page_43">[43]</a></span></p>
+
+<h2>III<br /><br />
+RULES OF SAVING AND SAFETY</h2>
+
+<p>1. Let no family (of five persons) buy meat until it
+has bought three quarts of milk, the cheapest protein
+food. Farmers should be urged to meet this demand.</p>
+
+<p>2. Save the cream and butter and eat oleomargarine
+and vegetable oils. Olive oil or cottonseed oil, taken
+with cabbage, lettuce, or beet-tops, is excellent food, in
+many ways imitating milk.</p>
+
+<p>3. Eat meat sparingly, rich and poor, laborer and
+indolent alike. Meat does not increase the muscular
+power. When a person is exposed to great cold, meat
+may be recommended, for it warms the body more than
+any other food. In hot weather, for the same reason, it
+causes increased sweating and discomfort. In general,
+twice as much meat is used as is now right, for to produce
+meat requires much fodder which might better be
+used for milk production.</p>
+
+<p>4. Eat corn bread. It saved our New England ancestors
+from starvation. If we eat it we can send wheat
+to France. Eat oatmeal.</p>
+
+<p>5. Drink no alcohol. In many families 10 per cent.
+of the income is spent for drink, or a sum which, if
+spent for real food, would greatly improve the welfare
+of the family.</p>
+
+<p><span class='pagenum'><a name="Page_44" id="Page_44">[44]</a></span></p><p>6. Eat corn syrup on cereals. It will save the sugar.
+Eat raisins in rice pudding, for raisins contain sugar.</p>
+
+<p>7. Eat fresh fish.</p>
+
+<p>8. Eat fruit and vegetables.</p>
+
+<p>Since the total energy for the maintenance of our
+bodies can be measured in calories, and since this energy
+serves for the maintenance of the nations of the
+world, is it not surprising how little even educated
+people know about the subject?</p>
+
+<p><span class='pagenum'><a name="Page_45" id="Page_45">[45]</a></span></p>
+
+<h2>INDEX</h2>
+
+<ul><li><span class="smcap">Alcoholic</span> beverages, <a href="#Page_41">41</a></li>
+
+<li>Appetite, <a href="#Page_23">23</a>, <a href="#Page_35">35</a>, <a href="#Page_41">41</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Balanced</span> ration, biological analysis of, <a href="#Page_9">9</a></li>
+
+<li>Basal metabolism, definition of, <a href="#Page_24">24</a>
+<ul>
+<li> of boys, <a href="#Page_26">26</a>, <a href="#Page_29">29</a></li>
+<li> of men, <a href="#Page_26">26</a>
+<ul><li> table, <a href="#Page_28">28</a></li></ul>
+</li>
+<li> of women, <a href="#Page_27">27</a></li>
+</ul>
+</li>
+
+<li>Butter, <a href="#Page_8">8</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Cabbage</span>, <a href="#Page_7">7</a></li>
+
+<li>Calorie, definition, <a href="#Page_24">24</a></li>
+
+<li>Calories, cost of, <a href="#Page_35">35</a></li>
+
+<li>Calorimeter, <a href="#Page_24">24</a></li>
+
+<li>Cane sugar, <a href="#Page_41">41</a></li>
+
+<li>Carbohydrates and muscular work, <a href="#Page_40">40</a></li>
+
+<li>Chittenden, <a href="#Page_16">16</a></li>
+
+<li>Corn and pellagra, <a href="#Page_10">10</a>
+<ul><li> in Italy, <a href="#Page_7">7</a></li>
+<li> quantity available, <a href="#Page_11">11</a></li>
+<li> reasons for using, <a href="#Page_10">10</a></li>
+<li> syrup, <a href="#Page_41">41</a></li></ul>
+</li>
+
+<li>Cream, use of, <a href="#Page_11">11</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Diet</span>, a balanced, <a href="#Page_7">7</a>
+<ul>
+<li> a proper, <a href="#Page_23">23</a></li>
+<li> Italian, <a href="#Page_7">7</a></li>
+<li> of purified food-stuffs, <a href="#Page_9">9</a></li></ul>
+</li>
+
+<li>DuBois, measurement of surface area, <a href="#Page_26">26</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Economy</span> in diet, <a href="#Page_8">8</a></li>
+
+<li>Emaciation, metabolism in, <a href="#Page_39">39</a></li>
+
+<li>Energy of sun, relation of life to, <a href="#Page_23">23</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Fasting</span>, metabolism in, <a href="#Page_25">25</a></li>
+
+<li>Foods, cost of, <a href="#Page_35">35</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Graham</span> bread, <a href="#Page_16">16</a></li>
+
+<li>Graham, Sylvester, <a href="#Page_16">16</a></li>
+
+<li>Green leaves in diet, <a href="#Page_8">8</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Heat</span> production in man, <a href="#Page_24">24</a></li>
+
+<li>Hindhede's dietary, <a href="#Page_14">14</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Life</span>, nature of, <a href="#Page_25">25</a></li>
+</ul>
+
+<ul>
+<li><span class='pagenum'><a name="Page_46" id="Page_46">[46]</a></span>
+<span class="smcap">Meat</span> and muscle work, <a href="#Page_18">18</a>
+<ul><li> desirability of, <a href="#Page_15">15</a></li>
+<li> economic production of, <a href="#Page_19">19</a>, <a href="#Page_20">20</a></li>
+<li> in hot weather, <a href="#Page_18">18</a>, <a href="#Page_43">43</a></li>
+<li> restricted diet of, in America, <a href="#Page_18">18</a>, <a href="#Page_20">20</a>
+<ul><li> in England, <a href="#Page_19">19</a></li>
+<li> in Germany, <a href="#Page_18">18</a></li></ul>
+</li>
+<li> specific dynamic action of, <a href="#Page_17">17</a></li></ul>
+</li>
+
+<li>Meatless dietary, <a href="#Page_14">14</a></li>
+
+<li>Men, metabolism of, <a href="#Page_27">27</a></li>
+
+<li>Metabolism, definition of, <a href="#Page_26">26</a>
+<ul><li> in emaciation, <a href="#Page_39">39</a></li>
+<li> in fasting, <a href="#Page_25">25</a></li></ul>
+</li>
+
+<li>Milk, cost of, <a href="#Page_13">13</a>
+<ul><li> economic production of, <a href="#Page_19">19</a>, <a href="#Page_20">20</a></li>
+<li> food value, <a href="#Page_8">8</a>, <a href="#Page_13">13</a>, <a href="#Page_14">14</a></li>
+<li> in pellagra, <a href="#Page_10">10</a></li></ul>
+</li>
+
+<li>Mineral salts, <a href="#Page_8">8</a>, <a href="#Page_23">23</a>, <a href="#Page_25">25</a></li>
+
+<li>Muscle work, <a href="#Page_25">25</a>, <a href="#Page_30">30</a>
+<ul><li> and carbohydrates, <a href="#Page_40">40</a></li>
+<li> and diet, <a href="#Page_17">17</a></li>
+<li> and fasting, <a href="#Page_17">17</a></li>
+<li> and protein, <a href="#Page_18">18</a></li>
+<li> and undernutrition, <a href="#Page_38">38</a>, <a href="#Page_39">39</a></li></ul>
+</li>
+</ul>
+
+<ul>
+<li><span class="smcap">Occupation</span> and metabolism, carrying a load, <a href="#Page_31">31</a>
+<ul><li> climbing, <a href="#Page_32">32</a></li>
+<li> industrial, <a href="#Page_33">33</a></li>
+<li> posture, <a href="#Page_30">30</a></li>
+<li> running, <a href="#Page_30">30-32</a></li>
+<li> walking, <a href="#Page_30">30</a></li></ul>
+</li>
+
+<li>Oleomargarine, <a href="#Page_12">12</a></li>
+
+<li>Olive oil, <a href="#Page_8">8</a></li>
+
+<li>Overfat people, <a href="#Page_38">38</a></li>
+
+<li>Oxidation of food-stuffs, <a href="#Page_24">24</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Peanut</span> butter, <a href="#Page_12">12</a></li>
+
+<li>Pellagra, <a href="#Page_9">9</a></li>
+
+<li>Pork, economic production of, <a href="#Page_19">19</a>, <a href="#Page_20">20</a>, <a href="#Page_21">21</a></li>
+
+<li>Potato diet, <a href="#Page_15">15</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Rules</span> of saving and safety, <a href="#Page_43">43</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Substitution</span> of foods, <a href="#Page_43">43</a>
+<ul><li> historical, <a href="#Page_11">11</a></li></ul>
+</li>
+
+<li>Summary, <a href="#Page_43">43</a></li>
+
+<li>Surface area and heat production, <a href="#Page_26">26</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Undernutrition</span>, <a href="#Page_38">38</a>
+<ul><li> and labor, <a href="#Page_38">38</a></li></ul>
+</li>
+</ul>
+
+<ul>
+<li><span class="smcap">Vegetable</span> oils, use of, <a href="#Page_12">12</a></li>
+
+<li>Vegetarianism, <a href="#Page_16">16</a></li>
+
+<li>Vitamins, <a href="#Page_8">8</a>, <a href="#Page_23">23</a></li>
+</ul>
+
+<ul>
+<li><span class="smcap">Weight</span>, reduction of, <a href="#Page_39">39</a></li>
+
+<li>Women, metabolism of, <a href="#Page_27">27</a></li>
+</ul>
+
+<div class="tn">
+<h3 class="smcap">Transcriber's Note:</h3>
+
+<p>The following corrections were made to the text: Du Bois to DuBois (<a href="#Page_45">p. 45</a>,
+Index entry) and Oleomargarin to Oleomargarine (<a href="#Page_46">p. 46</a>, Index entry).</p>
+
+<p>The variant spelling "calory" (<a href="#Page_32">p. 32</a>) has been retained.</p>
+</div>
+
+
+
+
+
+
+
+
+<pre>
+
+
+
+
+
+End of the Project Gutenberg EBook of Food in War Time, by Graham Lusk
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+</body>
+</html>
diff --git a/32472.txt b/32472.txt
new file mode 100644
index 0000000..586b463
--- /dev/null
+++ b/32472.txt
@@ -0,0 +1,1687 @@
+The Project Gutenberg EBook of Food in War Time, by Graham Lusk
+
+This eBook is for the use of anyone anywhere at no cost and with
+almost no restrictions whatsoever. You may copy it, give it away or
+re-use it under the terms of the Project Gutenberg License included
+with this eBook or online at www.gutenberg.org
+
+
+Title: Food in War Time
+
+Author: Graham Lusk
+
+Release Date: May 21, 2010 [EBook #32472]
+
+Language: English
+
+Character set encoding: ASCII
+
+*** START OF THIS PROJECT GUTENBERG EBOOK FOOD IN WAR TIME ***
+
+
+
+
+Produced by Tom Roch, S.D., and the Online Distributed
+Proofreading Team at http://www.pgdp.net (This file was
+produced from images produced by Core Historical Literature
+in Agriculture (CHLA), Cornell University)
+
+
+
+
+
+----------
+
+Transcriber's Note:
+
+In the plain-text versions, italics are represented with _underscores_,
+and bold text with {braces}.
+
+For the ASCII version, the following substitutions were made: deg. for
+degree symbol, +/- for the plus-minus sign, x for the multiplication
+sign, and a for a-umlaut.
+
+The following corrections were made to the text: Du Bois to DuBois (p.
+45, Index entry) and Oleomargarin to Oleomargarine (p. 46, Index entry).
+
+The variant spelling "calory" (p. 32) has been retained.
+
+----------
+
+
+
+
+ FOOD IN WAR TIME
+
+ _By_
+ GRAHAM LUSK
+
+ PROFESSOR OF PHYSIOLOGY, CORNELL UNIVERSITY MEDICAL COLLEGE IN
+ NEW YORK CITY
+
+ PHILADELPHIA AND LONDON
+ W. B. SAUNDERS COMPANY
+ 1918
+
+
+ Copyright, 1918
+ by
+ W. B. SAUNDERS COMPANY
+
+ ***
+
+ PRINTED IN AMERICA
+
+
+ DEDICATED
+ TO MY
+ FELLOW-COUNTRYMEN
+
+
+
+
+CONTENTS
+
+
+ PAGE
+
+ I. A BALANCED DIET 7
+
+ II. CALORIES IN COMMON LIFE 23
+
+ III. RULES OF SAVING AND SAFETY 43
+
+ INDEX 45
+
+
+NOTE
+
+The major parts of this small volume appeared under articles entitled
+"Food in War Time" in the _Scientific Monthly_ and "Calories in Common
+Life" in Saunders' _Medical Clinics of North America_.
+
+
+
+
+FOOD IN WAR TIME
+
+I
+
+A BALANCED DIET
+
+
+There is no doubt that under the conditions existing before the war the
+American people lived in a higher degree of comfort than that enjoyed in
+Europe. Hard times in America have always been better times than the
+best times in Europe. As a student in Munich in 1890 I remember paying
+three dollars a month for my room, five cents daily for my breakfast,
+consisting of coffee and a roll without butter, and thirty-five cents
+for a four-course dinner at a fashionable restaurant. This does not
+sound extravagant, but it represents luxury when compared with the diet
+of the poorest Italian peasants of southern Italy. Two Italian
+scientists describe how this class of people live mainly on cornmeal,
+olive oil, and green stuffs and have done so for generations. There is
+no milk, cheese, or eggs in their dietary. Meat in the form of fat pork
+is taken three or four times a year. Cornmeal is taken as "polenta," or
+is mixed with beans and oil, or is made into corn bread. Cabbage or the
+leaves of beets are boiled in water and then eaten with oil flavored
+with garlic or Spanish pepper. One of the families investigated
+consisted of eight individuals, of whom two were children. The annual
+income was 424 francs, or $84. Of this, three cents per day per adult
+was spent for food and the remaining three-fifths of a cent was spent
+for other purposes. Little wonder that such people have migrated to
+America, but it may strike some as astonishing that a race so nourished
+should have become the man power in the construction of our railways,
+our subways, and our great buildings.
+
+Dr. McCollum will tell you that the secret of it all lies in the green
+leaves. The quality of the protein in corn is poor, but the protein in
+the leaves supplements that of corn, so that a good result is obtained.
+Olive oil when taken alone is a poor fat in a nutritive sense, but when
+taken with green leaves, these furnish that one of the peculiar
+accessory substances, commonly known as vitamines, which is present most
+abundantly in butter-fat, and gives to butter-fat and to the fat in
+whole milk its dominant nutritive value. The green leaves likewise
+furnish another accessory substance, also present in milk, a substance
+which is soluble in water and which is necessary for normal life.
+Furthermore, the green leaves contain mineral matter in considerable
+quantity and in about the same proportions as they exist in milk.
+
+Here then is the message of economy in diet, corn the cheapest of all
+the cereals, a vegetable oil cheaper by far than animal fat, which two
+materials taken together would bring disaster upon the human race, but
+if taken with the addition of cabbage or beet-tops they become capable
+of maintaining mankind from generation to generation. One can safely
+refer to such a diet as a balanced diet. Just as in the case of the
+modern experimental biological analysis of a balanced ration in which
+such a ration is given to rats and its efficiency as a diet is tested by
+its capacity to support normal growth and reproduction of the species,
+so here the experimental evidence is presented that corn and olive oil
+may become a sustaining diet when green leaves are a supplementary
+factor.
+
+This preliminary sketch shows several important fundamentals of food and
+nutrition. If one gives an animal a mixture of purified food-stuffs,
+pure protein, pure starch, purified fat, and a mixture of salts like the
+salts of milk, the animal will surely die. But if one substitutes
+butter-fat for purified fat, and adds a water solution of the natural
+salts of milk, the animal lives and thrives.
+
+Again, the illustration shows how corn may be so supplemented with
+other food-stuffs as to become extremely valuable in nutrition. It is
+especially valuable at the present time because corn is comparatively
+cheap and plentiful. But one asks how about pellagra? It must be here
+definitely stated that the use of cornmeal is not the cause of pellagra,
+provided the right kind of other foods be taken with it. Pellagra occurs
+in the "corn belt" of the United States, and especially among the poorer
+classes in the south. The disease has developed since the introduction
+in 1880 of highly perfected milling machinery which furnishes corn and
+wheat completely freed from their outer coverings. In Italy, where the
+milling of corn is still primitive, pellagra is not so severe as with
+us, because the corn offal is not completely removed and this contains
+the accessory food substances or vitamines which are essential to life.
+Pellagra is generally believed to be produced by a too exclusive use of
+highly milled corn and wheat flour in association with salt meats and
+canned goods, all of which are deficient in vitamines. The administration
+of fresh milk is naturally indicated. Goldberger states that after the
+addition of milk to the diet of a pellagrin, the typical clinical
+picture of pellagra no longer persists. The poor in the mill towns of
+the South lived too exclusively upon a corn diet without admixture of
+milk or fresh animal food or even of cabbage, and pellagra has been the
+consequence.
+
+The Food Administrator asks us to eat corn bread and save the wheat for
+export. It is a very small sacrifice to eat corn bread at one meal or
+more a day. Indian corn saved our New England ancestors from starvation,
+and we can in part substitute it for our wheat and send the latter
+abroad to spare others from starvation. The simplest elements of
+patriotism demand that we do this. Therefore let us cry, "Eat corn bread
+and save the wheat for France, the home of Lafayette!"
+
+The United States Department of Agriculture has estimated that only 6.6
+per cent. of our corn crop is used for human food, and of this, 3.4 per
+cent. is consumed by the farmers and their families.
+
+The substitution of foods is no new thing. We find that an English
+contemporary author thus described the food habits of the English people
+during the "golden days of Good Queen Bess," three hundred and fifty
+years ago:
+
+ "The gentilitie commonly provide themselves sufficiently of
+ wheat for their own tables, whylest their household and poore
+ neighbours in some shires are forced to content themselves
+ with rye or barleie; yea and in time of dearth many with bread
+ made eyther of beanes, peason[1] or otes, or of altogether and
+ some acornes among."
+
+[1] An obsolete plural of pease.
+
+A difference between those days and ours is that the "gentilitie" and
+the "poore neighbours" are now asked to unite in reducing the
+consumption of wheat and to do this for the safety and welfare of all
+mankind.
+
+Another point in war economy is the use of whole milk in greater
+quantity, and the diminution of the use of butter and cream. Cream is
+bought only by the wealthy, but in sufficient volume to largely reduce
+the amount of whole milk available. In Germany before the war 15 per
+cent. of the milk supply of that country was used for the production of
+cream. The consequent restriction of the milk supply was distinctly to
+the detriment of the health of the peasant farmers of Bavaria. Regarding
+the use of butter, a Swiss professor, himself an expert in nutrition,
+complains that whereas in his youth children were never given butter on
+their bread for breakfast, not even when there was no jam in the house,
+yet to-day absence of butter from the table is held to be indicative of
+direst poverty.
+
+If one takes a pint of whole milk daily, or even, as we have seen,
+cabbage or beet-tops in its stead, one may take fat in the forms of
+olive oil or cottonseed oil, corn oil, cocoanut oil, peanut butter, or
+in other vegetable oils, without possible prejudice to health.
+
+Osborne and Mendel, and more recently Halliburton, have pointed out that
+oleomargarine as prepared from beef-fat contains the fat-soluble
+growth-promoting accessory substance or vitamine which is present in
+butter-fat, but which is not contained in vegetable oils or in lard.
+
+Halliburton and Drummond summarize the practical results of their work
+as follows:
+
+ But when we approach the subject of the dietary of the poorer
+ classes, the question is a more serious one. In ordinary times
+ the consumption of beef dripping, which is considerable among
+ the poor, would to a large extent supply the lacking
+ properties of a vegetable-oil margarine. But at the present
+ time beef itself is expensive, and the opportunities of
+ obtaining dripping are therefore minimized. At the same time
+ the three important foods for children already enumerated
+ (milk, butter, eggs) have risen in cost, so as to be almost
+ prohibitive to those with slender incomes. The vegetable-oil
+ margarines still remain comparatively cheap, and the danger is
+ that unless measures are taken to insure a proper milk supply
+ for infants at a reasonable charge, these infants may run the
+ risk of being fed, so far as fat is concerned, entirely upon
+ an inferior brand of margarine, destitute of the
+ growth-promoting accessory substance. It would be truer
+ economy even for the poor to purchase smaller quantities of an
+ oleo-oil margarine if they cannot afford the luxury of real
+ butter.
+
+The legal restrictions placed upon the sale of oleomargarine and the
+taxes enhancing its cost, now in operation in many of our states, are
+without warrant in morals or common sense and should be entirely
+abolished in times like these. A well-made brand of oleomargarine is
+much more palatable than butter of the second grade, and certainly for
+cooking purposes is just as valuable.
+
+Whole milk contains everything necessary for growth and maintenance,
+protein, fat, milk-sugar, salts, water, and the unknown but invaluable
+accessory substances. It is of such prime importance that each family
+should have this admirable food that I have suggested that no family of
+five should ever buy meat until they have bought three quarts of milk.
+The insistence by scientific men upon the prime importance of milk has
+probably had something to do with its rapid enhancement in price. This
+latter factor is greatly to be regretted. I have often wondered why it
+was that a quart bottle of a fancy brand of milk in New York should cost
+about as much as a quart of _vin ordinaire_ on the streets of Paris, and
+a quart bottle of cream as much as a quart of good champagne in Paris.
+Despite much denial it appears to me that milk is not sold as cheaply as
+it ought to be. Everything should be done to conserve our herds of cows
+for the increased supply of whole milk and incidentally for the
+manufacture of cheese and of milk powder or of condensed milk.
+
+If one takes milk with other foods, meat may be dispensed with. Thus
+Hindhede advocates as ideal a diet consisting of bread, potatoes, fruit,
+and a pint of milk. Splendid health, both of body and mind, the
+peasants' comparative immunity to indigestion, kidney and liver disease,
+as well as an absolute immunity to gout, is the alluring prospect held
+out by the following dietary:
+
+ Graham bread 1 pound
+ Potatoes 2 pounds
+ Vegetable fat 1/2 pound
+ Apples 1-1/2 pounds
+ Milk 1 pint
+
+This bread-potato-fruit diet gives a very excellent basis of wholesome
+nutrition. The potatoes yield an alkaline ash which has a highly solvent
+power over uric acid, and, therefore, a good supply of these valuable
+tubers is needed by the nation.
+
+To most Americans the dietary factors here described will appear to be
+merely attenuated hypotheses, fit only for philosophic contemplation.
+For, in real life, it is the roast beef of Old England, or some other
+famed equivalent, that makes its appeal. Far be it from me to disparage
+the feast following a hunt of the wild boar or other feasts famed in
+song and story, but that is not the question. The question is, is meat
+necessary? The description of the Italian dietary answers this in the
+negative.
+
+But is meat desirable? The Italian experimenters believed that the
+addition of four or eight ounces of meat to the dietaries of some of
+their subjects increased their physical and also their mental powers.
+The increase in mental power due to change in diet has always seemed to
+me to be a figment of the imagination and not susceptible of
+demonstration. Thomas lived for twenty-four days on a diet of starch and
+cream, during four days of which time the very small quantity of three
+ounces of meat was taken daily, and he found his mental and muscular
+power unchanged.
+
+A remarkable experiment on the effect of a potato diet has been
+reported by Hindhede. An individual partook of a diet of between four
+and one-half and nine pounds of potatoes daily, with some vegetable
+margarine, during a period of nearly three hundred days. The rule was to
+eat only when hungry and then the potatoes could be taken at the rate of
+an ounce a minute. During the last three months (ninety-five days) of
+the experiment severe mechanical work was performed and the total food
+intake for the latter period amounted to 770 pounds of potatoes and 48
+pounds of margarine. What could be more simple than stocking the cellar
+with coal, potatoes, and a tub of margarine! Who then would worry about
+the complexities of modern life?
+
+Of course, vegetarianism is no new thing. Its principal exponent was
+Sylvester Graham. It so happens that he was the brother of my great
+grandmother, and of him my father wrote in 1861, "long lanky Sylvester
+Vegetable Graham, leanest of men." Graham in 1829 began the advocacy of
+moderation in the use of a diet consisting of vegetables, Graham bread,
+fruits, nuts, salts and pure water, and excluding meat, sauces, salads,
+tea, coffee, alcohol, pepper, and mustard. The first effect of this
+diet, which largely eliminated the flavors, was to reduce the weight
+through lowering the intake of food, but the health of many followers of
+the diet appears to have been benefited. The "Graham System" of dieting
+suffered from withering criticism at the time. He published in 1837 a
+little book entitled, "Bread and Bread Making," bearing on its cover the
+scriptural quotation "Bread strengtheneth man's heart." He says in this
+volume:
+
+ But while the people of our country are entirely given up as
+ they are at present, to gross and promiscuous feeding on the
+ dead carcasses of animals and to the untiring pursuit of
+ wealth, it is perhaps wholly vain for a single individual to
+ raise his voice on a subject of this kind.
+
+The well-known work of Chittenden has shown that when the protein
+intake is reduced by one half or less of that which the average American
+appetite suggests, professional men, soldiers and athletes may be
+maintained in the best physical condition. One of Yale's champion
+intercollegiate athletes won all the events of the year in which he was
+entered while living on a reduced protein or Chittenden diet. Upon such
+a diet, or less than that, the people of Germany are now living to-day.
+The principle involves eating meat very sparingly, taking half a piece
+where one would have formerly been taken, and using it only for its
+flavor. The wing of a chicken has little meat on it and yet if eaten
+together with vegetables it gives the meal a different quality than it
+would have had without it, and to this extent its use is warranted. The
+muscles are active when hard labor is done, but the muscles do not need
+meat for the performance of their work. A fasting man may have
+considerable power. The popular idea of the necessity of meat for a
+laboring man may be epitomized in the statement: a strong man can eat
+more meat than a weak one, hence meat makes a man strong. The
+proposition is evidently absurd.
+
+Not only is the taking of meat without beneficial relation to the
+capacity for muscular work, but, in fact, an exclusive meat diet results
+in the sensation that work is being accomplished with difficulty. When
+meat is metabolized it stimulates the body to a higher heat production,
+as great an increase as 55 per cent. having been observed in a resting
+man. No other food-stuff will accomplish so great an increase. It is
+especially worthy of note that this increase in the heat production, due
+to the _specific dynamic action_ of protein, as it is called, cannot be
+utilized in the execution of mechanical work. When the organism of a
+laborer at work in a hot environment is called upon to eliminate extra
+heat, due to the work he is performing, he must also eliminate the quota
+of heat which is derived from any large ingestion of meat. Hence, the
+American farmer in the hot weather can eat little meat.
+
+So far as is known, taking meat even in large excess is not harmful, but
+it represents luxury and waste. According to an oral statement by A. E.
+Taylor, the results of many thousand urinary analyses in Germany during
+the second year of the war showed about 7 grams of nitrogen excreted,
+which would correspond to a dietary containing about 45 grams of
+protein. As a matter of fact, this is the equivalent of the reduced
+protein dietary of Chittenden, and it is reported that no ill effects
+can be attributed to it. The flavor of meat is such that it lends itself
+to the easy preparation of a palatable meal, but this flavor could
+undoubtedly be as well obtained if the present consumption of meat were
+cut in two. It is a question of habit, but with the present reduced
+supply of meat one must adopt new habits. It would be highly desirable
+if the grain now fed to fatten beef were given to maintain herds of
+milch cows.
+
+Indulgence in meat is due to the desire for strong flavor. With the
+increased distribution of wealth, the demand for meat grows. Its
+consumption by all classes had vastly increased in all prosperous
+countries prior to the war. It is well, however, to remember that its
+use has been excessive and unnecessary, and its price can be cut by
+wholesale voluntary abstinence. The British people have suffered no
+hardship in the recent reduction of their meat ration.
+
+A British Commission has reported to Parliament that it takes three
+times as much fodder to produce beef as it does to produce milk or pork
+of the same food value. Since cows eat chiefly hay and grass and pigs
+eat grain the cost of the production of a unit value of milk is much
+less than the cost of the same value in the form of pork. It takes only
+fifty per cent. more fodder to produce veal than to produce pork. Milk,
+pork, and veal have long been the established protein-containing foods
+of nations on the continent of Europe. According to these figures beef
+should cost in the market twice what veal costs, and yet the butcher
+charges nearly the same for the two. It would save food for milk
+production if steers were eaten as veal and not fed up into beef cattle.
+A suitable tax on all steers over a year old would accomplish this
+result. If all heifers were developed into milch cows and no cow capable
+of giving milk in quantity were slaughtered, the country would be placed
+on a much better basis than at present. It might make beef expensive,
+but there is every reason why it should be expensive. It would increase
+the dairy business, which is evidently a need of the times, something
+for the protection of the welfare of mankind. For it must be remembered
+that a well-nourished cow during a single year will give in the form of
+milk as much protein and two and a half times the number of calories as
+are contained in her own body.
+
+This was written before the publication of the following words of
+Armsby, the foremost authority on animal nutrition:[2]
+
+ Roast pig, to those who like it, is not only a delicacy but a
+ valuable article of diet, but nevertheless, it is possible to
+ pay too high a price for it, and while a proposal to restrict
+ rather than to promote meat production in the present crisis
+ may appear both irrational and unpatriotic it may nevertheless
+ be in the interest of true food economy....
+
+ It may be roughly estimated that about 24 per cent. of the
+ energy of grain is recovered for human consumption in pork,
+ about 18 per cent. in milk and only about 3.5 per cent. in
+ beef and mutton. In other words, the farmer who feeds bread
+ grains to his stock is burning up 75 to 97 per cent. of them
+ in order to produce for us a small residue of roast pig, and
+ so is diminishing the total stock of human food....
+
+ The task of the stock feeder must be to utilize through his
+ skill and knowledge the inedible products of the farm and
+ factory, such as hay, corn stalks, straw, bran, brewers' and
+ distillers' grains, gluten feed, and the like, and to make at
+ least a fraction of them available for man's use. In so doing
+ he will be really adding to the food supply and will be
+ rendering a great public service. Rather than seek to
+ stimulate live stock husbandry the ideal should be to adjust
+ it to the limits set by the available supply of forage crops
+ and by-product feeding stuffs while, on the other hand,
+ utilizing these to the greatest practicable extent, because in
+ this way we save some of what would otherwise be a total
+ loss....
+
+ The hog is the great competitor of man for the higher grades
+ of food, and in swine husbandry as ordinarily conducted we are
+ in danger of paying too much for our roast pig. Cattle and
+ sheep, on the other hand, although less efficient as
+ converters, can utilize products which man can not use and
+ save some of their potential value as human food. From this
+ point of view, as well as on account of the importance of milk
+ to infants and invalids, the high economy of food production
+ by the dairy cow deserves careful consideration, although of
+ course the large labor requirement is a counterbalancing
+ factor.
+
+ At any rate, it is clear that at the present time enthusiastic
+ but ill-considered "booming" of live stock production may do
+ more harm than good. If it is desirable to restrict or
+ prohibit the production of alcohol from grain or potatoes on
+ the ground that it involves a waste of food value, the same
+ reason calls for restriction of the burning-up of these
+ materials to produce roast pig. This means, of course, a
+ limited meat supply. To some of us this may seem a hardship.
+ Meat, however, is by no means the essential that we have been
+ wont to suppose and partial deprivation of it is not
+ inconsistent with high bodily efficiency. Certainly no
+ patriotic citizen would wish to insist on his customary
+ allowance of roast pig at the cost of the food supply of his
+ brothers in the trenches.
+
+[2] "Roast Pig," _Science_, 1917, xlvi, 160.
+
+The United States Department of Agriculture has estimated that a pig
+that has reached the weight of 150 pounds should be slaughtered, because
+beyond that weight the cost of the quantity of feed required to maintain
+the animal is out of proportion to the gain in food value of the pig.
+One might, therefore, call a pig weighing 150 pounds a _maximal economic
+hog_.
+
+
+
+
+II
+
+CALORIES IN COMMON LIFE
+
+
+A person is properly nourished who receives adequate energy in the form
+of carbohydrate and fat (and incidentally protein); adequate material
+for repair of wornout parts, such as protein and mineral salts; and the
+diet must contain certain accessory food substances known as food
+hormones or "vitamins." Also, it must contain water. But this is not
+all, for the food offered must be acceptable to the palate of the
+individual. A member of the French Scientific Commission which visited
+the United States in the summer of 1917, when questioned regarding the
+use of corn bread in France, replied "on ne peut pas changer des
+habitudes." The proper nutrition of an individual depends, therefore,
+not only upon a sufficient supply of food from a mechanistic standpoint,
+but also upon the reasonable satisfaction of the sense of appetite.
+These dual fundamentals of proper nutrition should be ever borne in
+mind.
+
+Heat from the sun enters into the composition of the food substances
+when they are being built up in the plants, and this energy, which is
+latent in the food, is set free in the animal body and is used as the
+source of power behind all the physical activities of the body. The
+energy can all be recovered as heat and measured in the form of
+calories. According to the principles of the law of the conservation of
+energy, heat is not destructible. The understanding of the value of a
+calorie is indispensable for the comprehension of nutrition. A calorie
+is the measure of a unit of heat, or the quantity of heat necessary to
+raise a liter of water from 0 deg. to 1 deg. Centigrade. Apparatus has
+been invented for measuring the heat production of a man, an apparatus
+which is called a calorimeter or a measurer of calories. If one puts a
+man weighing, say, 156 pounds in the box of such an apparatus, so that
+he lies comfortably on a bed in complete muscular relaxation, and before
+his breakfast, one finds that he produces 70 calories an hour. Only in
+certain types of disease is there any variation from this normal, though
+of course the weight of the man makes a difference in his requirement
+for energy. If, at the same time the subject is in the box, the quantity
+of oxygen which he absorbs is measured and if certain other chemical
+analyses be carried out, one can calculate the exact amounts of protein,
+fat, and sugar which have been oxidized by this oxygen. Now, if one
+calculates how much heat ought to have been set free from the oxidation
+of these quantities of protein fat and carbohydrate, it is discovered
+that the heat which ought to have been produced is exactly that quantity
+which was measured as having been produced by the man. This measurement
+represents the _basal metabolism_ of a man at complete rest, when his
+oxidative activities are at their lowest ebb.
+
+The basal metabolism as measured by 70 calories per hour in the case of
+this individual represents the sum of the fuel needed--(1) to maintain
+the beating of the heart, which every minute of a man's life moves the
+blood or one-twentieth part of the weight of the body, in a circle
+through the blood-vessels; (2) to maintain the muscles of respiration
+that the blood may be purified in the lungs; (3) to maintain the body
+temperature at that constant level which is so characteristic that a
+slight variation signifies illness, and (4) to maintain in the living
+state the numerous tissues of the body. Any extraneous muscular
+movements are carried out in virtue of an increased oxidation of
+materials and the heat production rises above the level of the basal
+metabolism with increased muscular effort. For a long time the power for
+the maintenance of the human machine can be furnished by its own body
+fat, as is seen in cases of prolonged fasting, but usually the power is
+derived instead from the food-fuel which is taken. The great question in
+the world to-day is whether or not a sufficient quantity of food-fuel is
+available to support the human family. The question of calories is not
+an academic one, but an intensely practical one.
+
+Science strives to express itself in mathematic terms, and this paper is
+written with that end in view.
+
+Phenomena of life are phenomena of motion. These motions are maintained
+at the expense of chemical energy liberated in the oxidative breakdown
+of carbohydrate, fat, and protein. Furthermore, the protein structure of
+the body cells and the salts of the bones and other tissues are in a
+constant state of wearing down. The energy for the human machine and the
+materials for its self-repair are taken in the form of food. The general
+term _metabolism_ includes all the chemical activities which take place
+under the influence of living cells.
+
+The total quantity of heat produced by the body is a measure of the
+intensity of the oxidation of carbohydrate, fat, and protein within the
+body.
+
+It is important to know definitely whether there is any constant measure
+of the level of the basal metabolism in normal people, so that one may
+determine in cases of disease whether the heat production is normal or
+increased or decreased.
+
+Rubner discovered that the heat production of mammalia during rest was
+the same per square meter of surface whether the being was a horse, a
+man, a dog, or a mouse. The proposition has appeared so improbable as to
+call forth much antagonism. DuBois deserves the credit of having
+established this relationship for man beyond the possibility of a doubt.
+He was able to do this on account of his discovery of a new and accurate
+method of measuring the area of the body surface. It appears from his
+work that the _basal metabolism_ for men between twenty and fifty years
+old is approximately 40 calories per hour per square meter of body
+surface, within a +/- error of 10 per cent.
+
+Boothby has found that the metabolism of patients who have recovered
+their health after hospital operations and who have been confined in the
+hospital between twenty and fifty days does not vary from the normal
+standard of DuBois.
+
+It has been found by DuBois that the basal metabolism in boys of twelve
+is 25 per cent. higher than for an adult of the same height and weight,
+or {50} calories per square meter of body surface; and that in boys of
+fifteen the metabolism is 11 per cent. higher than for the adult of the
+same size and shape, or {44} calories per square meter of body surface
+(unpublished work of DuBois). These results explain the large appetites
+of boys.
+
+Women show a metabolism which is 7 per cent. lower than that of men, or
+{37} calories per hour per square meter of surface.
+
+From the charts of the average heights and weights of men varying
+between fifteen and fifty-five years old, given by American life
+insurance companies, Mr. H. V. Atkinson, of my laboratory, has
+calculated the basal metabolism in a table here presented.
+Unfortunately, the weights given in these statistics include clothes
+worn by the individuals. The calculated heat production, however, is in
+each case based upon the weight without clothes. The table is computed
+from the following values:
+
+ Calories per
+ square meter
+ Age in years of surface
+
+ 15 44
+ 20-50 40
+ 55 37
+
+The table may also be used as follows:
+
+ To find the metabolism of--
+
+ Women between twenty to fifty years, multiply values for man
+ by 0.93.
+
+ Boys of twelve to thirteen years, multiply values for boys of
+ fifteen years by 1.10.
+
+
+THE BASAL METABOLISM OF MEN
+
+_Calculated from values of the basal metabolism determined by the
+methods of DuBois and applied to a table showing the average weights of
+221,819 men of different ages and heights compiled from the statistics
+of the medico-actuarial investigation of 1912._
+
+ ------------+------+------+------+------+------+------+------+------+------
+ Age. | | | | | | | | |
+ Heat per | 5 ft.| 5 ft.| 5 ft.| 5 ft.| 5 ft.| 5 ft.| 6 ft.| 6 ft.| 6 ft.
+ square meter| 0 in.| 2 in.| 4 in.| 6 in.| 8 in.|10 in.| 0 in.| 2 in.| 4 in.
+ of surface | | | | | | | | |
+ ------------+------+------+------+------+------+------+------+------+------
+ | Lbs.| Lbs.| Lbs.| Lbs.| Lbs.| Lbs.| Lbs.| Lbs.| Lbs.
+ | Cals.| Cals.| Cals.| Cals.| Cals.| Cals.| Cals.| Cals.| Cals.
+ 15 years | 107 | 112 | 118 | 126 | 134 | 142 | 152 | 162 | 172
+ 44 calories |{1510}|{1584}|{1658}|{1753}|{1837}|{1922}|{2006}|{2096}|{2186}
+ | | | | | | | | |
+ 20 years | 117 | 122 | 128 | 136 | 144 | 152 | 161 | 171 | 181
+ 40 calories |{1430}|{1498}|{1565}|{1647}|{1719}|{1796}|{1868}|{1949}|{2035}
+ | | | | | | | | |
+ 25 years | 122 | 126 | 133 | 141 | 149 | 157 | 167 | 179 | 189
+ 40 calories |{1459}|{1517}|{1594}|{1671}|{1738}|{1820}|{1896}|{1992}|{2083}
+ | | | | | | | | |
+ 30 years | 126 | 130 | 136 | 144 | 152 | 161 | 172 | 184 | 196
+ 40 calories |{1478}|{1536}|{1604}|{1685}|{1757}|{1839}|{1920}|{2007}|{2112}
+ | | | | | | | | |
+ 35 years | 128 | 132 | 138 | 146 | 155 | 165 | 176 | 189 | 201
+ 40 calories |{1488}|{1556}|{1613}|{1695}|{1767}|{1853}|{1939}|{2035}|{2136}
+ | | | | | | | | |
+ 40 years | 131 | 135 | 141 | 149 | 158 | 168 | 180 | 193 | 206
+ 40 calories |{1498}|{1565}|{1623}|{1709}|{1781}|{1863}|{1959}|{2055}|{2160}
+ | | | | | | | | |
+ 45 years | 133 | 137 | 143 | 151 | 160 | 170 | 182 | 195 | 209
+ 40 calories |{1507}|{1570}|{1632}|{1719}|{1791}|{1872}|{1968}|{2064}|{2169}
+ | | | | | | | | |
+ 50 years | 134 | 138 | 144 | 152 | 161 | 171 | 183 | 197 | 211
+ 40 calories |{1517}|{1575}|{1642}|{1724}|{1796}|{1881}|{1973}|{2074}|{2184}
+ | | | | | | | | |
+ 55 years | 135 | 139 | 145 | 153 | 163 | 173 | 184 | 198 | 212
+ 37 calories |{1449}|{1485}|{1548}|{1620}|{1692}|{1773}|{1854}|{1949}|{2052}
+ ------------+------+------+------+------+------+------+------+------+------
+
+The basal metabolism of an average boy of thirteen years of age
+weighing 80 pounds and of a height of 4 feet, 10 inches, may be
+calculated as 1525 calories per day. This is the same as that of a man
+twenty-five years old, weighing 126 pounds and 5 feet, 2 inches tall.
+
+A boy thirteen years old and weighing 156 pounds, his height being 6
+feet, 1 inch (there are such cases), would have a basal metabolism of
+2300 calories, or larger than that of any grown man given in the
+table--larger than a man weighing 211 pounds and 6 feet, 4 inches in
+height. I personally know a boy of this age and size. His parents are
+said to have sent him to boarding school in order to reduce their food
+bills.
+
+It is evident from this discussion that the food requirement of boys
+over twelve years old is about the same as that of men. The emaciation
+of the children of the poor probably reduces their requirement of food.
+It is not generally recognized that the boy needs as much food as his
+father. The requirements of girls have not been investigated, but they
+probably need as much as their mothers.
+
+These data will give with close scientific precision the _minimal
+requirement for energy_ which is necessary for the maintenance of the
+bed-ridden.
+
+Ordinary life, however, is not constituted after this fashion. "By the
+sweat of thy brow shalt thou eat bread."
+
+From the work of F. G. Benedict one may calculate the increase in the
+basal metabolism, as follows:
+
+ Increase in
+ the basal
+ metabolism
+ Occupation in per cent.
+
+ Sitting 5
+ Standing, relaxed 10
+ Standing, hand on a staff 11
+ Standing, leaning on support 3
+ Standing, "attention" 14
+
+If one wishes to determine from the basal metabolism table the heat
+production of a person who is confined to his room, one should add to
+the metabolism of the twenty-four hours the increase above the basal for
+those hours of the day during which he is sitting in a chair or
+standing.
+
+Passing to a consideration of the subject of mechanical work done by a
+man, one finds that it requires about 1.1 calories to transport a pound
+of body weight three miles during an hour, and that increasing power
+must be generated if the speed is increased above this rate of _maximal
+economic velocity_.
+
+These relations are shown below:
+
+ Extra calories
+ per hour required
+ to move 1 pound
+ Rate of movement of body
+
+ Walking 3 miles per hour 1.1
+ Walking 5.3 miles per hour 3.6
+ Running 5.3 miles per hour 3.1
+
+If one wishes to determine the heat production of a man weighing 156
+pounds and 5 feet, 7 inches in height, and who is walking or running,
+the following calculations can be made:
+
+ Rate of travel per hour in miles 3[3] 5.3[3] 5.3[4]
+ Cals. Cals. Cals.
+
+ Metabolism for transporting 156 pounds 172 562 484
+ Basal metabolism 70 70 70
+ Add for standing 7 7 7
+ --- --- ---
+ 249 639 561
+
+[3] Walking.
+
+[4] Running.
+
+If the man's food cost 10 cents a thousand calories, it may be
+calculated that he would have to walk over eight miles at a rate of
+three miles per hour in order to save money when he pays a 5-cent
+carfare. (This, however, does not include the cost of shoe leather.)
+
+The carrying of a load of 44 pounds is done at the same expenditure of
+energy as the carrying of one's own body weight when the rate is three
+miles an hour, so the soldier's equipment would call for the added
+expenditure of 48 calories (44 x 1.1), making his total hourly
+expenditure of energy nearly 300 calories (249 + 44) during a hike on a
+level road. His daily requirement for energy might be:
+
+ Calories
+
+ Sleeping 8 hours at 70 calories per hour 560
+ Resting in camp 6 hours at 77 calories per hour 462
+ Hike of 30 miles, 10 hours at 300 calories per hour 3000
+ ----
+ 4022
+
+This would be the heat production of a soldier on a day of a "forced
+march." The ordinary day's march is only fifteen miles.
+
+This assumes a level road. If, however, there are hills to climb and
+the body weight and the pack are lifted 1000 feet during the hike, this
+is done at the additional expense of approximately 0.96 calory of energy
+per pound of weight lifted. If the man weighed 156 pounds and the pack
+44 pounds, the additional fuel requirement would be 192 calories (200 x
+0.96). The total energy requirement for this kind of a hike would have
+been 4200 calories. Walking down hill is accomplished at an expenditure
+of slightly less energy than walking on the level, but this factor need
+not concern one.
+
+Supposing, however, this individual were running, lightly clad, on a
+level road in a race for a distance of 40 miles at the rate of 5.3 miles
+per hour, he would complete the distance in seven hours and thirty-three
+minutes, which is a reasonable record. His metabolism might thus be
+calculated:
+
+ Calories
+
+ Sleeping 10 hours at 70 calories per hour 700
+ Resting 6 hours, 23 minutes, at 77 calories per hour 497
+ Running 7 hours, 33 minutes, at 561 calories per hour 4236
+ ----
+ 5433
+
+It is a matter of record that a man has run between Milwaukee and
+Chicago, a distance of 80 miles, in about fifteen hours. Such an amount
+of work would have required over 9000 calories for the day.
+
+These calculations are all based upon experimental results obtained in
+various laboratories in different parts of the world and can be accepted
+as being free from any gross error.
+
+It is evident that the energy requirement is proportional to the amount
+of mechanical energy expended.
+
+One may turn now to the fuel needs in terms of calories in certain
+industrial pursuits. According to Becker and Hamalainen, the quantity of
+extra metabolism per hour required in various pursuits is as follows:
+
+ Extra calories of
+ metabolism per
+ hour due to
+ occupation
+
+ Occupations of women:
+ Seamstress 6
+ Typist[5] 24
+ Seamstress using sewing machine 24-57
+ Bookbinder 38-63
+ Housemaid 81-157
+ Washerwoman 124-214
+
+ Occupations of men:
+ Tailor 44
+ Bookbinder 81
+ Shoemaker 90
+ Carpenter 116-164
+ Metal worker 141
+ Painter (of furniture) 145
+ Stonemason 300
+ Man sawing wood 378
+
+[5] Observation of Carpenter.
+
+To use this table one may seek the basal metabolism of the individual,
+add 10 per cent. for sixteen hours of wakefulness when the person is
+sitting or standing, and then multiply the factors in the last table by
+the numbers of hours of work. For example, if one takes the individual
+weighing 156 pounds, one obtains the following requirements of energy if
+his business were that of a tailor and he worked eight hours a day:
+
+ Calories
+
+ Sleeping 8 hours at 70 calories per hour 560
+ Awake 16 hours at 77 calories per hour 1232
+ Add for work as tailor 8 hours at 44 calories 352
+ ----
+ 2144
+
+After this fashion one might calculate his food requirements had he
+followed occupations other than that of tailor:
+
+ Calories of
+ metabolism
+ Occupation per day
+
+ Bookbinder 2440
+ Shoemaker 2510
+ Carpenter 3100
+ Metal worker 2900
+ Painter 2950
+ Stonemason 4200
+ Man sawing wood 4800
+
+These figures make no allowance for walking to or from the place of
+employment.
+
+The data here given are inadequate to cover the industrial situation,
+but they show clearly that heavy work cannot be accomplished without a
+sufficient amount of food-fuel.
+
+The food-fuel with which to accomplish work is necessary not only for
+the soldier, but for the workman behind the line, and it should be
+adequate in quantity, satisfactory in quality, and not exorbitant in
+cost.
+
+In virtue of the world-wide scarcity of food, the work of the individual
+should be worthy of the food which he eats.
+
+Tables showing the cost of various wholesome food-stuffs about July 1,
+1917, are here reproduced for the benefit of the reader. The tables were
+prepared by Dr. F. C. Gephart and issued by the Department of Health of
+the City of New York in a leaflet edited by Doctors Holt, La Fetra,
+Pisek, and Lusk on the subject of food for children. If the world is
+seeking after energy in the form of food-fuel, the world is rightly
+entitled to understand the value of its purchases. It must be clearly
+understood that people are always destined to look with hopeful
+anticipation toward the enjoyment of a meal. They will instinctively
+"eat calories" just as they instinctively "eat pounds." They _buy
+pounds_ of food, and they could buy more intelligently if they knew the
+energy value of what they buy.
+
+ Cost of 1000 Price per
+ calories, pound,
+ cents cents
+ TABLE 1--_Cost of Fats._
+ Cottonseed oil 7.3 31
+ Oleomargarine 8.5 30
+ Peanut butter 8.8 25
+ Butter 11.9 43
+ Olive oil 12.1 51
+ Bacon 13.8 37
+ Bacon, sliced, in jars 23.8 65
+ Cream (extra heavy, 40 per cent.) 37.7 65 (1 pint)
+
+ TABLE 2--_Cost of Cereals._
+ Cornmeal, in bulk 3.6 6
+ Hominy, in bulk 3.6 6
+ Broken rice, in bulk 3.7 6
+ Oatmeal, in bulk 3.8 7
+ Samp, in bulk 4.2 7
+ Quaker Oats, in package 4.4 8
+ Macaroni, in package 4.5 8
+ Wheat flour, in bulk 4.6 8
+ Malt breakfast food, in package 4.8 8
+ Pettijohn, in package 5.3 9
+ Cream of Wheat, in package 5.7 10
+ Farina, in package 5.9 10
+ Cracked wheat, in bulk 5.9 10
+ Pearl barley, in package 6.0 10
+ Barley flour, in bulk 6.1 10
+ Whole rice, in bulk 6.1 10
+ Wheatena, in package 8.1 14
+
+ TABLE 3--_Cost of Ready-to-serve Cereals._
+ Shredded Wheat Biscuit 7.8 13
+ Grape-nuts 8.6 15
+ Force 9.4 16
+ Corn Flakes 11.7 20
+ Puffed rice 23.5 38
+
+ TABLE 4--_Cost of Vegetables._
+ White potatoes 12.9 4.0
+ Turnips 20.0 2.5
+ New beets 27.6 5.0
+ Onions 29.3 6.0
+ Spinach 30.0 3.3
+ Green peas 39.2 10.0
+ Lima beans 39.2 10.0
+ Cauliflower 42.9 6.0
+ Carrots 50.0 8.0
+ String-beans 55.6 10.0
+ Squash 76.2 8.0
+ Lettuce 89.4 7.0
+ Celery 214.0 15.0
+
+ TABLE 5--_Cost of Breadstuffs._
+ Ginger-snaps 6.3 12.0
+ Graham bread 8.2 10.3
+ White bread 8.5 10.3
+ Rye bread 8.7 10.3
+ Graham crackers 9.2 18.0
+ Soda crackers 9.4 18.0
+ French rolls 10.8 14.0
+ Uneeda Biscuit 12.4 24.0
+
+ TABLE 6--_Cost of Proteins._
+ Milk (Grade A) 20.0 13.0 (1 quart)
+ Roast beef (rib) 23.4 26.0
+ Buttermilk 26.5 9.0 (1 quart)
+ Lamb chops (loin) 32.7 43.0
+ Lamb chops (rib) 34.9 38.0
+ Young codfish (fresh) 38.6 12.0
+ Chicken (roasting) 41.3 32.0
+ Eggs 44.7 45.0 (1 dozen)
+ Beefsteak (round) 50.4 34.0
+
+ TABLE 7--_Cost of Fruit._
+ Fresh (in season):
+ Bananas 23.0 6
+ Apples 23.7 5
+ Oranges 65.0 10
+ Dried:
+ Prunes 8.4 10
+ Apples 11.1 15
+ Peaches 12.5 15
+ Apricots 15.5 20
+
+ TABLE 8--_Cost of Syrup._
+ Cane sugar 4.5 8
+ Karo corn syrup 5.7 8
+
+A British scientific commission has reported to Parliament that if the
+workman be undernourished he may, by grit and pluck, continue his labor
+for a certain time, but in the end his work is sure to fail. It makes no
+difference what the nutritive condition of the person is, if a certain
+job involving muscular effort is to be done it always requires a
+definite amount of extra food-fuel to do it. Rubner, the greatest German
+authority on nutrition, excited grossly inappropriate hilarity in the
+comic press of his country by showing that a poor woman who waited
+several hours in line in order to receive the dole of fat allowed her by
+the government actually consumed more of her own body fat in the effort
+of standing during those hours than she obtained in the fat given her
+when her turn to receive it came at last.
+
+A method by which food-fuel can readily be saved with benefit to the
+nation and to the individual is for the overfat to reduce their weight.
+This has been done with drastic severity in Germany. I have heard from
+unquestioned sources how a man who had weighed 240 pounds lost 90 pounds
+since the war began; how a corpulent professor at Breslau lost greatly
+in weight, but during the second summer of the war regained his former
+corpulence during a sojourn in the Bavarian Tyrol, a joy not now
+tolerated; and how an American woman lost 40 pounds in weight last
+winter in Dresden. There is every reason why a man who is overweight at
+the age of fifty should reduce his weight until he reaches the weight he
+was when he was thirty-five. According to Dr. Fisk he is a better
+insurance risk if after thirty-five he is under the weight which is the
+average for those of his years. Reduction in weight reduces the basal
+requirement for food, and reduces the amount of fuel needed for moving
+the body in walking. The most extreme illustration of the effect of
+emaciation upon the food requirement is afforded by a woman who after
+losing nearly half of her body weight was found to need only 40 per
+cent. of the food-fuel formerly required. This represented a state not
+far from the border line of death from starvation, but it indicates how
+a community may long support itself on restricted rations. It must be
+strictly borne in mind, however, that if any external muscular work is
+to be accomplished it can only be effected at the expense of a given
+added quantity of food-fuel, whether the person be fat or thin.
+
+It is not at all difficult to reduce the body weight. Suppose a
+clergyman or a physician requires 2500 calories daily in the
+accomplishment of his work and takes 2580 calories per day instead. The
+additional 80 calories is the equivalent of a butter ball weighing a
+third of an ounce, or an ounce of bread or half a glass of milk. It
+would seem to be the height of absurdity to object to such a trifle. But
+if this excess in food intake be continued for a year, the person will
+gain nine pounds and at the end of ten years ninety pounds. Such a
+person would find that he required a constantly increasing amount of
+food in order to transport his constantly increasing weight. In
+instances of this sort a motto may be applied which I heard the last
+time I was in Washington: "Do not stuff your husband, husband your
+stuff."
+
+Now it is evident that, if instead of taking more than the required
+amount of food a little less be taken than is needed, the balance of
+food-fuel must be obtained from the reserves of the body's own supply of
+fat. By cutting down the quantity of fat taken, or by eliminating a
+glass of beer or a drink of whiskey, and not compensating for the loss
+of these by adding other food stuffs, the weight may be gradually
+reduced. The amusing little book entitled "Eat and Grow Thin" recommends
+a high protein and almost carbohydrate-free diet for the accomplishment
+of this purpose, but its advice has made so many of my friends so
+utterly miserable that I am sure in the end it will counteract its own
+message.
+
+The work of the world is accomplished in largest part by the oxidation
+of carbohydrates, that is to say, of sugars and starches. Bread, corn,
+rice, macaroni, cane-sugar, these are _par excellence_ the food-fuels of
+the human machine. In the dinner-pail of the laborer they testify as to
+the source of his power. They are convertible into glucose in the body,
+which glucose gives power to the human machine. They may be used for the
+production of work without of themselves increasing the heat production
+of the worker, as happens after meat ingestion. (See p. 18.) Fat also
+may be used as a source of energy, but unless carbohydrate is present a
+person can not work up to his fullest capacity.
+
+Cane-sugar is a valuable condiment, and when taken in small quantities
+every half hour, may delay the onset of fatigue. It is more largely used
+in the United States than in other countries in the world. As a
+substitute, glucose may be used. This is found in grapes and in raisins
+and it is also produced in large quantities by the hydrolysis of starch
+and sold under the commercial name of corn syrup or Karo. This substance
+is entirely wholesome and may be freely employed in the place of sugar,
+which is scarce.
+
+As to the use of alcoholic beverages, the question resolves itself into
+several factors. Alcohol gives a sham sensation of added force and in
+reality decreases the ability to do work. Alcohol is the greatest cause
+of misery in the world, and as Cushny has put it, if alcohol had been a
+new synthetic drug introduced from Germany, its importation would long
+since have been forbidden. On the other hand, good beer makes poor food
+taste well. It also frequently leads to overeating. The cure for bad
+food is to have our daughters taught how to cook a decent meal. After
+that we can talk about prohibition.
+
+In some parts of the world whole nations are starving to death. In most
+countries of the world people are short of food. In America we have more
+food than in any other land, and we must, therefore, be careful in our
+abundance, saving it to the utmost, while, at the same time, conserving
+the safety of our own people.
+
+
+
+
+III
+
+RULES OF SAVING AND SAFETY
+
+
+1. Let no family (of five persons) buy meat until it has bought three
+quarts of milk, the cheapest protein food. Farmers should be urged to
+meet this demand.
+
+2. Save the cream and butter and eat oleomargarine and vegetable oils.
+Olive oil or cottonseed oil, taken with cabbage, lettuce, or beet-tops,
+is excellent food, in many ways imitating milk.
+
+3. Eat meat sparingly, rich and poor, laborer and indolent alike. Meat
+does not increase the muscular power. When a person is exposed to great
+cold, meat may be recommended, for it warms the body more than any other
+food. In hot weather, for the same reason, it causes increased sweating
+and discomfort. In general, twice as much meat is used as is now right,
+for to produce meat requires much fodder which might better be used for
+milk production.
+
+4. Eat corn bread. It saved our New England ancestors from starvation.
+If we eat it we can send wheat to France. Eat oatmeal.
+
+5. Drink no alcohol. In many families 10 per cent. of the income is
+spent for drink, or a sum which, if spent for real food, would greatly
+improve the welfare of the family.
+
+6. Eat corn syrup on cereals. It will save the sugar. Eat raisins in
+rice pudding, for raisins contain sugar.
+
+7. Eat fresh fish.
+
+8. Eat fruit and vegetables.
+
+Since the total energy for the maintenance of our bodies can be measured
+in calories, and since this energy serves for the maintenance of the
+nations of the world, is it not surprising how little even educated
+people know about the subject?
+
+
+
+
+INDEX
+
+
+ Alcoholic beverages, 41
+
+ Appetite, 23, 35, 41
+
+
+ Balanced ration, biological analysis of, 9
+
+ Basal metabolism, definition of, 24
+ of boys, 26, 29
+ of men, 26
+ table, 28
+ of women, 27
+
+ Butter, 8
+
+
+ Cabbage, 7
+
+ Calorie, definition, 24
+
+ Calories, cost of, 35
+
+ Calorimeter, 24
+
+ Cane sugar, 41
+
+ Carbohydrates and muscular work, 40
+
+ Chittenden, 16
+
+ Corn and pellagra, 10
+ in Italy, 7
+ quantity available, 11
+ reasons for using, 10
+ syrup, 41
+
+ Cream, use of, 11
+
+
+ Diet, a balanced, 7
+ a proper, 23
+ Italian, 7
+ of purified food-stuffs, 9
+
+ DuBois, measurement of surface area, 26
+
+
+ Economy in diet, 8
+
+ Emaciation, metabolism in, 39
+
+ Energy of sun, relation of life to, 23
+
+
+ Fasting, metabolism in, 25
+
+ Foods, cost of, 35
+
+
+ Graham bread, 16
+
+ Graham, Sylvester, 16
+
+ Green leaves in diet, 8
+
+
+ Heat production in man, 24
+
+ Hindhede's dietary, 14
+
+
+ Life, nature of, 25
+
+
+ Meat and muscle work, 18
+ desirability of, 15
+ economic production of, 19, 20
+ in hot weather, 18, 43
+ restricted diet of, in America, 18, 20
+ in England, 19
+ in Germany, 18
+ specific dynamic action of, 17
+
+ Meatless dietary, 14
+
+ Men, metabolism of, 27
+
+ Metabolism, definition of, 26
+ in emaciation, 39
+ in fasting, 25
+
+ Milk, cost of, 13
+ economic production of, 19, 20
+ food value, 8, 13, 14
+ in pellagra, 10
+
+ Mineral salts, 8, 23, 25
+
+ Muscle work, 25, 30
+ and carbohydrates, 40
+ and diet, 17
+ and fasting, 17
+ and protein, 18
+ and undernutrition, 38, 39
+
+
+ Occupation and metabolism, carrying a load, 31
+ climbing, 32
+ industrial, 33
+ posture, 30
+ running, 30-32
+ walking, 30
+
+ Oleomargarine, 12
+
+ Olive oil, 8
+
+ Overfat people, 38
+
+ Oxidation of food-stuffs, 24
+
+
+ Peanut butter, 12
+
+ Pellagra, 9
+
+ Pork, economic production of, 19, 20, 21
+
+ Potato diet, 15
+
+
+ Rules of saving and safety, 43
+
+
+ Substitution of foods, 43
+ historical, 11
+
+ Summary, 43
+
+ Surface area and heat production, 26
+
+
+ Undernutrition, 38
+ and labor, 38
+
+
+ Vegetable oils, use of, 12
+
+ Vegetarianism, 16
+
+ Vitamins, 8, 23
+
+
+ Weight, reduction of, 39
+
+ Women, metabolism of, 27
+
+
+
+
+
+End of the Project Gutenberg EBook of Food in War Time, by Graham Lusk
+
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