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.
Coffee		122	×	0.045	=	0.055	gram.
Cream	31 + 40 =	71	×	0.32	=	0.227
Sugar	8 + 26 + 10 =	44	×	0.00	=	0.000
Roast lamb		50	×	4.28	=	2.140
Baked potato		52	×	0.29	=	0.151
Peas		64	×	1.04	=	0.666
Biscuit		32	×	1.35	=	0.432
Butter		12	×	0.13	=	0.016
Lettuce salad		43	×	0.23	=	0.099
Cream cheese		21	×	1.62	=	0.340
Toasted crackers		23	×	1.36	=	0.313
Blanc mange		164	×	0.35	=	0.574
Iced tea		225	×	0.018	=	0.041
Lettuce sandwich		51	×	0.85	=	0.434
Strawberries		130	×	0.11	=	0.143
Sponge cake		31	×	0.94	=	0.291
	Total nitrogen in food					5.922	grams.
	Total nitrogen in urine					4.660

Fuel value of the food

1533 calories.

Monday, June 27, 1904.

Breakfast.—Coffee 112 grams, cream 22 grams, sugar 10 grams.

Lunch.—Roast lamb 9 grams, baked potato 90 grams, wheat gems 47 grams, butter 12 grams, sugar 25 grams, iced tea 250 grams, vanilla éclair 47 grams.

Dinner.—Lamb chop 32 grams, asparagus 49 grams, butter 17 grams, creamed potato 107 grams, bread 35 grams, lettuce-orange salad with mayonnaise dressing 150 grams, cream cheese 12 grams, crackers 21 grams, coffee 63 grams, sugar 9 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Coffee	123 + 53 =	176	×	0.045	=	0.079	gram.
Cream		22	×	0.32	=	0.070
Sugar	10 + 25 + 9 =	44	×	0.00	=	0.000
Iced tea		250	×	0.018	=	0.045
Baked potato		90	×	0.25	=	0.225
Wheat gems		47	×	1.65	=	0.776
Butter	12 + 17 =	29	×	0.13	=	0.038
Roast lamb		9	×	4.28	=	0.385
Vanilla éclair		47	×	0.85	=	0.400
Lamb chops		32	×	4.57	=	1.462
Asparagus		49	×	0.59	=	0.289
Creamed potato		107	×	0.40	=	0.428
Bread		35	×	1.33	=	0.466
Lettuce-orange salad, etc.		150	×	0.23	=	0.345
Cream cheese		12	×	1.62	=	0.194
Crackers		21	×	1.35	=	0.284
	Total nitrogen in food					5.486	grams.
	Total nitrogen in urine					4.980

Fuel value of the food

1454 calories.