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                         1989 ?سموحة بالولايات المتحدة?

          Recommended dietary allowances revised 1989 (abrid
                                                practically all healthy pe

Category  Age (years)      Weightb    Heightb
               or        )kg( )lb(  )cm( )In(

           condition

Infants   0.0-0.5 6 13 60 24

          0.5-1.0 9 20 71 28

Children  1-3 13 29 90 35

          4-6 20 44 112 44

          7-10 28 62 132 52

Males     11-14          45 99 157 62

          15-18          66 145     176  69

          19-24          72 160     177  70

          25-50          79 174     176  70

          51+            77 170     173  68

Females   11-14          46 101     157  62

          15-18          55 120     163  64

          19-24          58 128     164  65

          25-50          63 138     163  64

          +15            65 143     160  63

Pregnant

Lactating 1 st 6 months

          2nd 6 months

The allowances, expressed as average daily intakes over time, are intended to pr

United States under usual environ- mental stresses. Diets should be based on a

requirements have been less well defined *Weights and heights of Referenc Adu

by NHANES II. The median weights and heights of those under 19 years of age w
the height-to-weight ratios are ideal.
* Retinal equivalents 1 retinal equivalent = 1 ?g retinal or 6 ?g ?-carotene.
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