TABLE 6-3, Examples of the Derivation of Protein Allowances for Children and Adolescents by a Factorial Procedure - Recommended Dietary Allowances

Warning: The NCBI web site requires JavaScript to function. more...

	Growth
Age	Nitrogen Increment (mg/kg per day)^b	Nitrogen Increment × 1.5 (mg/kg per day)^c	Nitrogen Increment × 1.5, plus Correction for at 70% (mg/kg per day)^d	Nitrogen Maintenance Level (mg/kg per day)^e	Total Nitrogen (mg/kg per day)	Allowance of Reference Protein (g/kg per day)^f
Age	Nitrogen Increment (mg/kg per day)^b	Nitrogen Increment × 1.5 (mg/kg per day)^c		Nitrogen Maintenance Level (mg/kg per day)^e	Total Nitrogen (mg/kg per day)	Mean	+ 2 SD^g
Both sexes Months
3–5.9	47	70	100	120	220	1.38	1.73
6–11.9	34	51	73	120	193	1.21	1.51
Years
1	16	25	36	119	155	0.97	1.21
5	9	13	19	116	135	0.84	1.05
9	8	12	17	111	128	0.80	1.00
Males, years
12	9	13	19	108	127	0.79	0.98
17	3	5	7	103	110	0.69	0.86
Females, years
12	7	10	14	108	122	0.76	0.95
17	0	0	0	103	103	0.64	0.80

a: From WHO (1985: Tables 32–34). These figures are examples of the derivation of requirements at various ages. For methodological details and a complete listing of ages, consult the WHO report.
b: Increment for growth.
c: 50% Additional nitrogen increment to allow for daily variation in growth rate and inability to store amino acids to be available when maximum growth occurs.
d: Assuming a 70% efficiency of dietary protein utilization for growth.
e: Data from WHO (1985).
f: High-quality, highly digestible protein such as egg or milk. Protein is total nitrogen × 6.25.
g: Individual variability. The coefficient of variation for both maintenance and growth was assumed to be 12.5%.

Recommended Dietary Allowances: 10th Edition.

National Research Council (US) Subcommittee on the Tenth Edition of the Recommended Dietary Allowances.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.