National Institutes of Health (NIH) Vitamin D Recommended Daily Allowance6
| Population | Recommended Daily Allowance |
|---|---|
| Age | |
| 0–12 months | 10 mcg (400 IU) |
| 1–13 years | 15 mcg (600 IU) |
| 14–70 years | 15 mcg (600 IU) |
| >71 years | 20 mcg (800 IU) |
| Special populations | |
| Pregnancy | 15 mcg (600 IU) |
| Lactation | 15 mcg (600 IU) |
| Bariatric surgery | 75 mcg (3000 IU), titrate to serum level of >30 ng/mL |
Abbreviation: IU, International Units.