Food and Nutrition Board, National Academy of Sciences—National Research Council Recommended Dietary Allowances, Revised 1989.a
WeightbHeightbFat-Soluble VitaminsWater-Soluble VitaminsMineralsCatego-ryAge (years) or ConditionkglbcminProtein (g)Vitamin A (μ
g
ofRE
)
cVitamin D (μ
g)dVitamin E (mg of
α- TE
)
e
Vitamin K (μ
g)Vitamin C (mg)Thia-mine (mg)Ribofla-vin (mg)Niacin (mgNE
)
fVitamin B
6
(mg)Folate (
μ
g)Vitamin B
12
(
μ
g)Calcium (mg)gPhos-phorus (mg)Magne-sium (mg)Iron (mg)Zinc (mg)Iodine (
μ
g)Seleni-um (μ
g)Infants0.0–0.56136024133757.535300.30.450.3250.3400300406540100.5–1.092071281437510410350.40.560.6350.5600500601055015Children1–3132990351640010615400.70.891.0500.780080080101070204–62044112442450010720450.91.1121.1751.0800800120101090207–102862132522870010730451.01.2131.41001.4800800170101012030Males11–14459915762451000101045501.31.5171.71502.01200120027012151504015–186614517669591000101065601.51.8202.02002.01200120040012151505019–247216017770581000101070601.51.7192.02002.01200120035010151507025–50791741767063100051080601.51.7192.02002.080080035010151507051+771701736863100051080601.21.4152.02002.01200800350101515070Females11–1446101157624680010845501.11.3151.41502.01200120028015121504515–1855120163644480010855601.11.3151.51802.01200120030015121505019–2458128164654680010860601.11.3151.61802.01200120028015121505525–506313816364508005865601.11.3151.61802.080080028015121505551+6514316063508005865601.01.2131.61802.01500800280101215055Pregnant60800101065701.51.6172.24002.212001200320301517565Lactating1st 6 months651300101265951.61.8202.12802.6120012003551519200752nd 6 months621200101165901.61.7202.12602.612001200340151620075Modified and reproduced, with permission, fromRecommended Dietary Allowances,10th ed, National Academy Press, 1989. Copyright © 1989 by the National Academy of Sciences. Courtesy of the National Academy Press, Washington, D.C.a
The allowances, expressed as average daily intakes over time, are intended to provide for individual variations among most normal persons as they live in the United States under usual environmental stresses. Diets should be based on a vari-ety of common foods to provide other nutrients for which human requirements have been less well defined.b
Weights and heights of Reference Adults are actual medians for the U.S. population of the designated age. The median weights and heights of those under 19 years of age are not necessarily the ideal values.c
Retinol equivalents. 1 retinol equivalent = 1 mg of retinol or 6μ
g ofβ
-carotene.d
As cholecalciferol. 10μ
g of cholecalciferol = 400IU
of vitamin D.e
α
-Tocopherol equivalents. 1 mg ofd- α
tocopherol = 1
α- TE
.
f
1
NE
(niacin equivalent) is equal to 1 mg of niacin or 60 mg of dietary tryptophan.g
Calcium values increased after age 50.