- For Indians
| Group | Particulars | RDA (mg/day) |
| Men | Sedentary Work | 28 |
| Moderate Work | ||
| Heavy Work | ||
| Women
|
Sedentary Work | 30 |
| Moderate Work | ||
| Heavy Work | ||
| Pregnant Woman | 38 | |
| Lactation | ||
| 0-6 months | 30 | |
| 6-12 months | ||
| Infants | 0-6 months | – |
| 6-12 months | ||
| Children | 1-3 years | 12 |
| 4-6 years | 18 | |
| 7-9 years | 26 | |
| Boys | 10-12 years | 34 |
| Girls | 10-12 years | 19 |
| Boys | 13-15 years | 41 |
| Girls | 13-15 years | 28 |
| Boys | 16-18 years | 50 |
| Girls | 16-18 years | 30 |
- For U.S. residents
| Group | Age (y) | Iron (mg/day) |
| Infants | 0.5-0.5 | 6 |
| 0.5-1.0 | 10 | |
| Children | 1-3 | 10 |
| 4-6 | 10 | |
| 7-10 | 10 | |
| Males | 11-14 | 12 |
| 15-18 | 12 | |
| 19-24 | 10 | |
| 25-50 | 10 | |
| 51+ | 10 | |
| Females | 11-14 | 15 |
| 15-18 | 15 | |
| 19-24 | 15 | |
| 25-50 | 15 | |
| 51+ | 10 | |
| Pregnancy | 30 | |
| Lactating | 1st 6 months | 15 |
| 2nd 6 months | 15 |