RATIONAL FEEDING OF MEN 



377 



the nutrients are secured from a variety of sources, the 

 largest amount of protein coining from the bread. 

 About one-third of the protein is supplied in the form of 

 meat, one-fourth by the eggs and milk, while the balance 

 is secured from the vegetable foods. Bread, potatoes, 

 cornmeal and sugar supply most of the carbohydrates, 

 the two ounces of sugar supplying nearly 14 per cent. 



In combining foods to form balanced rations, meats, 

 beans, cheese, milk, bread and oatmeal supply protein, 

 while pork, ham, bacon and other fat meats, butter, 

 cheese and milk supply the fats. Carbohydrates are 

 supplied more liberally from bread, rice, cornmeal, 

 cereals, potatoes, sugar and vegetables. 



504. Ccmparative Cost and Value of Foods. With 



human as with animal foods, the market price does not, 

 as a rule, correspond with their nutritive value. When 

 foods differ widely in cost, their relative values can be 



BUTTER. ' T-S33 



Fig. 100. Comparative composition of milk, cheese, and butter. 



approximately determined by comparing the amounts of 



