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

by R. H. Chittenden

Breakfast.—Bread 30 grams, tea 146 grams, sugar 15 grams.

Dinner.—Clam chowder 270.5 grams, bread 64 grams, butter 14.5 grams, lobster 36.5 grams, Saratoga chips 15 grams, caramel custard 79 grams, tea 146 grams, sugar 15 grams.

Supper.—Bread 35.2 grams, butter 13.8 grams, pineapple 148.7 grams, crullers 84.8 grams, tea 140 grams, sugar 15 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Bread		30.0	×	1.46	=	0.438	gram.
Tea		146.0	×	0.045	=	0.066
Sugar	15 + 15 + 15 =	45.0	×	0.00	=	0.000
Bread	64 + 35.2 =	99.2	×	1.44	=	1.428
Butter	14.5 + 13.8 =	28.3	×	0.10	=	0.028
Clam chowder		270.5	×	0.34	=	0.920
Lobster		36.5	×	3.73	=	1.361
Saratoga chips		15.0	×	0.97	=	0.146
Caramel custard		79.0	×	0.77	=	0.608
Tea		146.0	×	0.036	=	0.053
Tea		140.0	×	0.036	=	0.050
Pineapple		148.7	×	0.054	=	0.080
Crullers		84.8	×	1.04	=	0.882
	Total nitrogen in food					6.060	grams.
	Total nitrogen in urine					5.810

Fuel value of the food

1921 calories.

Friday, June 3, 1904.

Breakfast.—Bread 31 grams, tea 146 grams.

Dinner.—Fried ham 61 grams, asparagus 124.2 grams, baked potato 85 grams, bread 29 grams, butter 23.5 grams, tea 140 grams, sugar 15 grams, pineapple 74.8 grams.

Supper.—Bread 34 grams, butter 17.8 grams, pineapple 158.5 grams, tomato 132.5 grams, cup cake 121 grams, tea 140 grams, sugar 15 grams.

Food.		Grams.	Per cent Nitrogen.			Total Nitrogen.
Bread	31 + 20 + 34 =	94.0	×	1.44	=	1.354	grams.
Tea		146.0	×	0.039	=	0.057
Fried ham		61.0	×	4.90	=	2.989
Asparagus		124.2	×	0.50	=	0.621
Baked potato		85.0	×	0.55	=	0.468
Butter	23.5 + 17.8 =	41.3	×	0.10	=	0.041
Tea		140.0	×	0.027	=	0.038
Sugar	15 + 15 =	30.0	×	0.000	=	0.000
Pineapple	74.8 + 158.5 =	233.3	×	0.065	=	0.152
Tea		140.0	×	0.054	=	0.076
Tomato		132.5	×	0.150	=	0.199
Cup cake		121.0	×	0.85	=	1.029
	Total nitrogen in food					7.024	grams.
	Total nitrogen in urine					7.300