CONSTITUENTS OF THE BODY AND THE FOOD. 



899 



and the nitrogenous, of about 4J to 1 in the diet of Vierordt, and of 

 about 5J to 1 in that of Playfair. 



The annexed Table shows these facts more clearly. 



DAILY FOOD or AN ADULT MAN, IN ozs. AVOIRDUPOIS. 



Relations between the Constituents of the Body and those of the 



Daily Food. 



Having determined the proportions of the different proximate con- 

 stituents of the body, in 1000 parts, and the same proportions in regard 

 to the proximate constituents of the food, and knowing that the total 

 weight of the daily food is about ^th of the total weight of the body, 

 it is easy to ascertain approximately, the ratio between the daily quan- 

 tity of each of those proximate constituents of the food, and the quan- 

 tity of the same, or similar substances, present in the body. The re- 

 sults are shown in the annexed Table. 



From this comparison, it appears that, in round numbers, the daily 

 supply of albuminoid substances in the food is rather less than 1 for 

 every 100 parts of albuminoid materials in the body ; that the supply 



