FOOD 565 



the intestines. The best rice is lacking in phosphoric acid, lime and 

 other mineral and nitrogenous matters. 



Eggs, oil, beans, &c., should be taken to compensate for this. 



To calculate the caloric value of any food remember that : — 



One gramme of protein equals 4'i large calories 

 )j i3.t ,, 9'3 )) 



„ carbohydrates 4'i ,, 



Voit's standard diet is : — 



105 grammes of protein x 41 equals 430 large caloiies 



56 „ lat X 9-3 „ 520 



500 „ carbohydrates x 4-1 ,, 2,050 ,, 



3'ooo large calories 



One large calorie when converted into mechanical force is equal 

 to 425 kilogram metres or i'32 foot tons, hence the available energy 

 in the 3,000 calories would be 3,000 x 425 equals 1,275,000 kilogram 

 metres or 3,960 foot tons. 



An average man of 11 stone (70 kilos) has an average daily waste 

 of nitrogen 20 grm. and carbon 320 grm., hence his food must 

 replace this waste and also about 3,000 calories for mechanical energy. 



Remember that to obtain 16 grm. of nitrogen, 100 grm. of 

 nitrogen must be ingested. 



An average ratio of daily food is, according to Hutchison : — - 



Protein 125, fat 50, carbohydates 500, total 676 grm. 



Calories 3,027. Nutrient value 1:5. 



676 grm. is 2r7 ounces (one ounce equals 31 '104 grm.). 



Or 9'6 grm. per kilogram of body weight. 



Or o"i4i ounces per pound of body weight. 



Thus taking Voit's standard diet as above it would be classified 

 thus : — 



In 24 hours per kilogramme of body weight 



Grm. Grm. Ounces Total ounces 



Protein 118 ... 17 ... 0-025 ••• 3'8 



Fat ... 56 ... 0-8 ... 0-0I2 ... 1-8 



Carbohydrates ... 500 ... yi ... o'lio ... i6'o 



674 9-6 OT47 21-6 



One may consider generally that an average male requires daily 



For bare sustenance 12-14 ounces, equals 375-435 grammes 

 For moderate work 20-23 v v 622-775 ,, 



For hard work 21-25 „ ., 653-777 ,, 



A native's food consisting of : — 



Soy beans 5 ounces would yield protein 1765 starch 3*470 

 Rice 16 „ „ 1-163 ,, 12-752 



2-928 l6-222 



The beans are also rich in oil, the above containincr about ^r erm, 



