| 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.
