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

by R. H. Chittenden

Breakfast.—Coffee 210 grams, bread 31.8 grams, cream 50 grams, sugar 40 grams, oatmeal 155 grams.

Lunch.—Bread 77 grams, butter 14.5 grams, apple fritters 193.5 grams, coffee 210 grams, sugar 20 grams.

Dinner.—Bread 82 grams, butter 20 grams, cranberries 150 grams, baked beans 150 grams, coffee 210 grams, sugar 32 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Coffee		210.0	×	0.12	=	0.252	grams.
Bread	31.8 + 77 + 82 =	190.8	×	1.65	=	3.148
Cream		50.0	×	0.47	=	0.235
Sugar	40 + 20 + 32 =	92.0	×	0.00	=	0.000
Oatmeal		155.0	×	0.60	=	0.930
Butter	14.5 + 20 =	34.5	×	0.088	=	0.030
Fritters		193.5	×	0.45	=	0.870
Coffee		210.0	×	0.11	=	0.231
Cranberries		150.0	×	0.04	=	0.060
Baked beans		150.0	×	1.40	=	2.100
Coffee		210.0	×	0.11	=	0.231
	Total nitrogen in food					8.087	grams.
	Total nitrogen in urine					8.290

Fuel value of the food

2145 calories.

Thursday, February 11, 1904.

Breakfast.—Bread 49 grams, oatmeal 185.7 grams, cream 64 grams, coffee 210 grams, sugar 35 grams.

Lunch.—Bread 111.8 grams, butter 40.5 grams, sweet potato 287 grams, peach preserve 109.3 grams.

Dinner.—Tomato purée 99 grams, bread 94.5 grams, butter 21.5 grams, beans 138 grams, lemon pie 155 grams, coffee 210 grams, sugar 21 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Bread	49 + 111.8 + 94.5 =	255.3	×	1.75	=	4.467	grams.
Oatmeal		185.7	×	0.40	=	0.742
Cream		64.0	×	0.49	=	0.313
Coffee		210.0	×	0.096	=	0.201
Sugar	35 + 21 =	56.0	×	0.00	=	0.000
Butter	40.5 + 21.5 =	62.0	×	0.088	=	0.054
Sweet potato		287.0	×	0.31	=	0.889
Peach preserve		109.3	×	0.09	=	0.098
Tomato purée		99.0	×	0.33	=	0.326
Beans		138.0	×	1.30	=	1.794
Lemon pie		155.0	×	0.61	=	0.945
Coffee		210.0	×	0.13	=	0.273
	Total nitrogen in food					10.102	grams.
	Total nitrogen in urine					8.550