INDIAN CORN AS FOOD FOR MAN. 



95 



Digestibility of nutrients and energy of total food. 



O 3 



03 g 



Hominy, simple diet 



mixed diet 



Haaty pudding, simple diet 

 mixed diet. 



Johnny-cake, simple diet., 

 mixed diet... 



Brown bread, simple diet., 

 mixed diet... 



Hoe-cake, simple diet 



* with syrup 



mixed diet 



White bread, simple diet .. 

 mixed diet 



Per 



cent. 

 96.4 

 96.3 



95.9 

 96.9 



93.8 

 93.9 



93.5 

 92.9 



93.7 

 95.5 

 92.6 



94.0 



98.2 



Discussion of the; Results Obtained by the Digestion 



Experiments. 



1. In every case but one, the protein of the mixed diet was 

 more completely digested than that of the simple diet. The 

 low digestibility of a simple diet has been often noted in previous 

 experiments. 



2. With a simple diet the protein of the johnny-cake and the 

 brown bread seems to have been slightly more digestible than 

 that of the white bread. With the mixed diet, the white bread 

 shows a digestibility distinctly greater than that of the corn 

 breads. 



3. The use of syrup with the hoe-cake to a slight degree 

 depressed the digestibility of the protein. This is in accordance 

 with other experiments in which the digestibility of the protein 

 apparently varied with the ratio existing between the protein 

 and the pther nutrients. 



In this connection attention may be called to the large propor- 

 tion of carbohydrates in the food used in this work. The 

 requirements of the body seem to be most economically met by 



