Biotin (B7): recommended daily intake
Reference values for biotin (b7) across life-stage groups, from NIH Office of Dietary Supplements: Biotin.
30 µg/day
Adults 19–50.
| Life stage | RDA / AI | UL | EAR | AMDR |
|---|---|---|---|---|
| Infants 0–6 months | 5µg (AI) | - | - | - |
| Infants 7–12 months | 6µg (AI) | - | - | - |
| Children 1–3 years | 8µg (AI) | - | - | - |
| Children 4–8 years | 12µg (AI) | - | - | - |
| Males 9–13 years | 20µg (AI) | - | - | - |
| Females 9–13 years | 20µg (AI) | - | - | - |
| Males 14–18 years | 25µg (AI) | - | - | - |
| Females 14–18 years | 25µg (AI) | - | - | - |
| Adult males 19–50 | 30µg (AI) | - | - | - |
| Adult females 19–50 | 30µg (AI) | - | - | - |
| Adult males 51+ | 30µg (AI) | - | - | - |
| Adult females 51+ | 30µg (AI) | - | - | - |
| Pregnancy (19–30) | 30µg (AI) | - | - | - |
| Lactation (19–30) | 35µg (AI) | - | - | - |
Notes
- No Tolerable Upper Intake Level (UL) has been established for biotin.
Source: NIH Office of Dietary Supplements: Biotin (snapshot 2026-04-30)