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

by R. H. Chittenden

NITROGEN BALANCE.—Loewenthal.

		Nitrogen Taken in.		Output.
				Nitrogen in Urine.		Weight of Fæces (dry).
Jan.	12	7.793	grams.	7.33	grams.
	13	9.992		7.64		21	grams.
	14	7.388		6.21		26
	15	8.560		8.18		52
	16	7.282		7.92		37
	17	8.349		7.26		11
						147	grams contain 6.97% N.
		49.364		44.54	+	10.24	grams nitrogen.
		49.364	grams nitrogen.		54.78	grams nitrogen.

Nitrogen balance for six days	=	-5.416	grams.
Nitrogen balance per day	=	-0.902	gram.

Daily diet same as Oakman’s, except that a smaller amount of coffee was taken at breakfast on the 14th. Nitrogen correction made accordingly.

COFFMAN STELTZ

Photographs taken at the close of the experiment.

NITROGEN BALANCE.—Steltz.

		Nitrogen Taken in.		Output.
				Nitrogen in Urine.		Weight of Fæces (dry).
Jan.	12	7.793	grams.	4.61	grams.	15.0	grams.
	13	9.463		7.90		34.0
	14	7.412		4.99		21.0
	15	8.560		9.05		31.5
	16	7.282		7.56		33.0
	17	8.349		8.55		18.0
						152.5	grams contain 6.52% N.
		48.859		42.66	+	9.94	grams nitrogen.
		48.859	grams nitrogen.		52.60	grams nitrogen.