- For U.S. residents
| Group | Age (y) | Zinc (mg/day) |
| Infants | 0.5-0.5 | 5 |
| 0.5-1.0 | 5 | |
| Children | 1-3 | 10 |
| 4-6 | 10 | |
| 7-10 | 10 | |
| Males | 11-14 | 15 |
| 15-18 | 15 | |
| 19-24 | 15 | |
| 25-50 | 15 | |
| 51+ | 15 | |
| Females | 11-14 | 12 |
| 15-18 | 12 | |
| 19-24 | 12 | |
| 25-50 | 12 | |
| 51+ | 12 | |
| Pregnant | 15 | |
| Lactating | 1st 6 months | 19 |
| 2nd 6 months | 16 |