Dietary Reference Intakes for Vitamin B7 (Biotin) in United States (per day)
| Males | AI |
|---|---|
| 0-6 months | 5 μg |
| 7-12 months | 6 μg |
| 1-3 years | 8 μg |
| 4-8 years | 12 μg |
| 9-13 years | 20 μg |
| 14-18 years | 25 μg |
| 19-30 years | 30 μg |
| 31-50 years | 30 μg |
| 50-70 years | 30 μg |
| 70 years and older | 30 μg |
| Females | AI |
|---|---|
| 0-6 months | 5 μg |
| 7-12 months | 6 μg |
| 1-3 years | 8 μg |
| 4-8 years | 12 μg |
| 9-13 years | 20 μg |
| 14-18 years | 25 μg |
| 19-30 years | 30 μg |
| 31-50 years | 30 μg |
| 50-70 years | 30 μg |
| 70 years and older | 30 μg |
| Pregnancy | AI |
|---|---|
| less than 18 years | 30 μg |
| 19-30 years | 30 μg |
| 31-50 years | 30 μg |
| Lactation | AI |
|---|---|
| less than 18 years | 35 μg |
| 19-30 years | 35 μg |
| 31-50 years | 35 μg |