Group |
Particulars |
RDA (mg/day) |
Men |
Sedentary Work |
1 |
Moderate Work |
Heavy Work |
Women |
Sedentary Work |
1 |
Moderate Work |
Heavy Work |
Pregnant Woman |
1.5 |
Lactation |
0-6 months |
1.5 |
6-12 months |
1.5 |
Infants |
0-6 months |
0.2 |
6-12 months |
0.2 |
Children |
1-3 years |
0.2-1.0 |
4-6 years |
0.2-1.0 |
7-9 years |
0.2-1.0 |
Boys |
10-12 years |
0.2-1.0 |
Girls |
10-12 years |
0.2-1.0 |
Boys |
13-15 years |
0.2-1.0 |
Girls |
13-15 years |
0.2-1.0 |
Boys |
16-18 years |
0.2-1.0 |
Girls |
16-18 years |
0.2-1.0 |
Life Stage Group |
RDA (μg/day) |
Infants |
0-6 months |
4 (AI*) |
7-12 months |
5 (AI*) |
Children |
1-3 y |
0.9 |
4-8 y |
1.2 |
Males |
9-13 y |
1.8 |
14-18 y |
2.4 |
19-30 y |
2.4 |
31-50 y |
2.4 |
51-70 y |
2.4# |
>70 y |
2.4# |
Females |
9-13 y |
1.8 |
14-18 y |
2.4 |
19-30 y |
2.4 |
31-50 y |
2.4 |
51-70 y |
2.4# |
>70 y |
2.4# |
Pregnancy |
£18 y |
2.6 |
19-30 y |
2.6 |
31-50 y |
2.6 |
Lactating |
£18 y |
2.8 |
19-30 y |
2.8 |
31-50 y |
2.8 |
*Abbreviations AI = Adequate intake # Because 10% to 30% of older people may mal – absorb food-bound vitamin B12, it is advisable for those older than 50 years to meet their RDA mainly by consuming foods fortified with vitamin B12 or a supplement containing vitamin B12.