400 



GENERAL SCIENCE 



results obtained by specialists in nutrition indicate that a 

 man who does average muscular work requires 3.7 ounces 



Bread 



FIG. 354. A Day's Ration. 



of protein, an equal amount of fats, and 13 ounces of 

 carbohydrates to provide the energy used up in one 

 day and for the repair of the wasted tissues. 



In terms of fuel values At- 

 water's 1 standard, for a man at 

 light exercise is 2816 Calories ; 

 410 Calories from protein, 930 

 Calories from fat, and 1476 

 Calories from carbohydrates. 

 Professor Chittenden of Yale 

 University gives as his standard 

 for the same man, food to yield 

 2360 Calories, of which protein 

 is to furnish 236 Calories, fat 

 708 Calories, and carbohydrates 



FIG. 355. Elements Contained 1416 Calories. ProfeSSOr Chit- 



tenden's diet would contain about 



2.2 ounces of protein, 2.8 ounces of fat, and 13 ounces 

 of carbohydrates. 



1 W. O. Atwater: Principles of Nutrition and Nutritive Value of 

 Food. 



