FOODS. 

 COMPARISON OF THE INCOME AND OUTGO. 



135 



Other estimates as to the amounts of the organic food principles 

 required daily are as follows : 



Ranke. Voit. Moleschott. Atwater. Hultgren. 



Grams. Grams. Grams. Grams. Grams. 



Proteid, 100 118 130 125 134 



Fat, 100 56 84 125 79 



Starch, 250 500 550 400 522 



In arranging tables showing the relation between the income and 

 the outgo, it is generally customary to state merely the amounts by 

 weight of the nitrogen and carbon each contains. This method 

 furnishes sufficiently accurate information regarding the metabolism 

 of the body, for the reason that the nitrogen represents the proteid, 

 and the carbon, with the exception of that contained in the proteid, 

 the fat and carbohydrates which have undergone disintegration or 

 metabolism. 



The following balance table, as given by Ranke, shows the rela- 

 tion of the nitrogen to the carbon in the average mixed diet and in the 

 excretions of a man weighing 70 kilograms, in a condition of nutritive 

 ecjuilibrium: 



