176 COCOA AND CHOCOLATE 



about 31 per cent, of butter, we will take this for 

 purposes of calculation : 



Average Composition and Fuel Value of English Eating 



Chocolate. 



Composition Enei gy-giving power 

 Calories per lb. 



Cacao Butter 31*4 = 1 ,327 



Protein (total nitrogen 0-78%) 4-1 = 76 



Cacao Starch 2'3\ , 



Other Digestible Carbohydrates, etc. 6*4^ 



. , /-Theobromine .... o"i 



Stimulants { n a - , J 



ICaftein 01 



Mineral Matter 1*2 



Crude Fibre 0*9 



Moisture ro 



Sugar 52-3 = 973 



IOO'O 2 538 



In Snyder's Human Foods (19 16) the official analyses 

 of 163 common foods are given. They include prac- 

 tically everything that human beings eat, and only 

 three are greater than chocolate in energy-giving power. 



The result (2,538 calories per lb.) which we obtain 

 by calculation is lower than the figure (2,768 calories 

 per lb.) for chocolate given by Sherman in his 

 book on Food and Nutrition (1918). Probably his figure 

 is for unsweetened chocolate. The table below shows 

 the energv-giving value of cocoa and chocolate com- 

 pared with well-known foodstuffs. The figures (save 

 for "eating" chocolate) are taken from Sherman's book, 

 and are calculated from the analyses given in Bulletin 

 28 of the United States Department of Agriculture : 



Fuel Value of Foodstuffs. 



Foodstuff as Calories Foodstuff as Calories 



Purchased. per lb. Purchased. per lb. 



Cabbage 121 Beef Steak 960 



Cod Fish 209 Bread (average white) 1,180 



Apples 214 Oatmeal 1,811 



Potatoes 302 Sugar 1,815 



Milk 314 Cocoa 2,258 



Eggs 594 Eating Chocolate . . 2,538 



