Physiological economy in nutrition, with special reference to the minimal proteid requirement of the healthy man / an experimental study

by R. H. Chittenden

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Orange		100	×	0.20	=	0.200	grams.
Roll		50	×	1.67	=	0.835
Butter		8	×	0.15	=	0.012
Oatmeal		100	×	0.43	=	0.430
Coffee	150 + 150 + 150 =	450	×	0.06	=	0.270
Sugar	21 + 7 + 7 =	35	×	0.00	=	0.000
Cream		40	×	0.45	=	0.180
Macaroni		112	×	0.46	=	0.515
Potato		200	×	0.30	=	0.600
Onions		143	×	0.25	=	0.358
Ice cream		170	×	0.53	=	0.901
Cake		31	×	1.20	=	0.372
Cream of Celery soup		150	×	0.33	=	0.495
Mashed potato		182	×	0.37	=	0.673
Spinach		100	×	0.55	=	0.550
Strawberry short-cake		97	×	0.50	=	0.485
	Total nitrogen in food					6.876	grams.
	Total nitrogen in urine					7.710

Fuel value of the food

1929 calories.

Monday, May 23, 1904.

Breakfast.—Banana 219 grams, coffee 150 grams, cream 80 grams, sugar 28 grams.

Lunch.—Rice croquette 143 grams, syrup 45 grams, potato 200 grams, coffee 150 grams, sugar 7 grams, apple sauce 250 grams.

Dinner.—Vegetable soup 150 grams, bacon 37 grams, string beans 100 grams, potato 101 grams, macaroni 86 grams, coffee 150 grams, water ice 184 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Banana		219	×	0.23	=	0.504	grams.
Cream		80	×	0.45	=	0.360
Sugar	28 + 7 =	35	×	0.00	=	0.000
Coffee	150 + 150 + 150 =	450	×	0.06	=	0.270
Apple sauce		250	×	0.02	=	0.050
Rice croquette		143	×	0.61	=	0.872
Syrup		45	×	0.024	=	0.011
Potato		200	×	0.60	=	1.200
Macaroni		86	×	0.87	=	0.748
Vegetable soup		150	×	0.70	=	1.050
Bacon		37	×	3.28	=	1.214
String beans		100	×	0.22	=	0.220
Potato croquette		101	×	0.77	=	0.778
Water ice		184	×	0.006	=	0.011
	Total nitrogen in food					7.288	grams.
	Total nitrogen in urine					5.980

Fuel value of the food

2226 calories.