2SS 



Influence of Inanition on Metabolism. 



Table 176. Calculated protein and energy in fresh food Continued. 



1 Composition assumed to be the same as for raw. 



Determinations of nitrogen, phosphorus, sulphur, and heat of combustion 

 of food. While for the approximations of the ordinary dietary study the use 

 of average figures for the percentage composition of food materials is fully 

 justified, in an accurate balance experiment in which it is desired to know the 

 income and outgo of material and energy, accurate analyses alone can be used. 



Such analyses were made of the composite sample of food for each day. 

 The results are given in table 177, which includes also the total amounts of 

 each element determined and the total energy of the food for each week and the 

 average per day. 



