Group

Body weight

Kg

Requirement mcg/kg/d

Absorption assumed %

RDA

mg/d

Adult Men

60

14

5

17

Adult Women (NPNL)

55

30

8

21

Pregnant women

55

51

8

35

Lactating women (0 - 6 m)

55

23

8

25

Infants

0 - 6 m

5.4

46

--

--

6 - 12 m

8.4

87

15

5

Children

1 - 3 yr

12.9

35

5

9

4 - 6 yr

18.0

35

5

13

7 - 9 yr

25.1

31

5

16

Adolescents

Boy

10 - 12 yr

34.3

31

5

21

Girl

10 - 12 yr

35.0

38

5

27

Boy

13 - 15 yr

47.6

34

5

32

Girl

13 - 15 yr

46.6

29

5

27

Boy

16 - 17 yr

55.4

25

5

28

Girl

16 - 17 yr

52.1

25

5

26