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.
Banana		94	×	0.23	=	0.216	grams.
Cream	75 + 75 =	150	×	0.46	=	0.690
Sugar	21 + 14 + 21 =	56	×	0.00	=	0.000
Coffee	150 + 150 + 150 =	450	×	0.06	=	0.270
Roll (wheat)		53	×	1.66	=	0.880
Butter	11 + 7 + 10 =	28	×	0.15	=	0.042
Soup		150	×	0.41	=	0.615
Farina croquette		100	×	1.09	=	1.090
Fried sweet potato		117	×	0.32	=	0.374
String beans		75	×	0.34	=	0.255
Syrup		50	×	0.024	=	0.012
Bread		36	×	1.60	=	0.576
Hamburg steak		53	×	3.64	=	1.929
Potato		250	×	0.38	=	0.950
Spinach		100	×	0.53	=	0.530
Bread		55	×	1.80	=	0.990
Apple pie		142	×	0.43	=	0.611
	Total nitrogen in food					10.030	grams.
	Total nitrogen in urine					8.350

Fuel value of the food

2686 calories.

Thursday, May 19, 1904.

Breakfast.—Banana 155 grams, roll 53 grams, butter 10 grams, coffee 150 grams, sugar 28 grams, cream 70 grams.

Lunch.—Fried hominy 60 grams, syrup 48 grams, potato 100 grams, boiled onion 82 grams, coffee 150 grams, cream 35 grams, sugar 21 grams, bread pudding 134 grams.

Dinner.—Tomato soup 200 grams, macaroni 75 grams, mashed potato 54 grams, spinach 70 grams, boiled Indian-meal 100 grams, coffee 150 grams, cream 80 grams, sugar 21 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Roll		53	×	1.54	=	0.816	grams.
Banana		155	×	0.23	=	0.357
Butter		10	×	0.15	=	0.015
Coffee	150 + 150 + 150 =	450	×	0.06	=	0.270
Sugar	28 + 21 + 21 =	70	×	0.00	=	0.000
Cream	70 + 35 + 80 =	185	×	0.47	=	0.870
Potato		100	×	0.49	=	0.490
Fried hominy		60	×	0.67	=	0.402
Boiled onion		82	×	0.27	=	0.221
Bread pudding		134	×	0.28	=	0.375
Syrup		48	×	0.024	=	0.012
Tomato soup		200	×	0.53	=	1.060
Macaroni		75	×	0.93	=	0.698
Mashed potato		54	×	0.38	=	0.205
Spinach		70	×	0.56	=	0.392
Boiled Indian-meal		100	×	0.20	=	0.200
	Total nitrogen in food					6.383	grams.
	Total nitrogen in urine					9.600

Fuel value of the food

2075 calories.