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

by R. H. Chittenden

Supper.—Biscuit 75 grams, butter 11 grams, potato 106 grams, cake 52 grams, apricots 75 grams, milk 230 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Oatmeal		345	×	0.40	=	1.380	grams.
Butter	7 + 11 =	18	×	0.11	=	0.020
Sugar		30	×	0.00	=	0.000
Milk	100 + 200 + 230 =	530	×	0.54	=	2.862
Coffee		180	×	0.14	=	0.252
Bread		67	×	1.39	=	0.931
Potato (dinner)		71	×	0.52	=	0.369
Corn		179	×	0.44	=	0.788
Pie		133	×	0.54	=	0.718
Biscuit		75	×	1.21	=	0.908
Potato (supper)		106	×	0.36	=	0.382
Cake		52	×	0.90	=	0.468
Apricots		75	×	0.21	=	0.158
	Total nitrogen in food					9.236	grams.
	Total nitrogen in urine					8.720

Fuel value of the food

2080 calories.

Saturday, May 7, 1904.

Breakfast.—Oatmeal 382 grams, milk 100 grams, coffee 185 grams, butter 10 grams, sugar 30 grams.

Dinner.—Bread 93 grams, potato 67 grams, rice pudding 141 grams, milk 200 grams.

Supper.—Bread 67 grams, butter 13 grams, potato salad 122 grams, milk 240 grams, coffee 120 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Oatmeal		382	×	0.41	=	1.566	grams.
Milk	100 + 200 + 240 =	540	×	0.54	=	2.916
Coffee (breakfast)		185	×	0.13	=	0.241
Butter	10 + 13 =	23	×	0.11	=	0.025
Sugar		30	×	0.00	=	0.000
Bread	93 + 67 =	160	×	1.33	=	2.128
Potato		67	×	0.56	=	0.375
Rice pudding		141	×	0.76	=	1.072
Potato salad		122	×	0.35	=	0.427
Coffee (supper)		120	×	0.15	=	0.180
	Total nitrogen in food					8.930	grams.
	Total nitrogen in urine					8.530

Fuel value of the food

1714 calories.

Sunday, May 8, 1904.