Vitamin K: recommended daily intake
Reference values for vitamin k across life-stage groups, from NIH Office of Dietary Supplements: Vitamin K.
120µg
men
90µg
women
Adults 19–50.
| Life stage | RDA / AI | UL | EAR | AMDR |
|---|---|---|---|---|
| Infants 0–6 months | 2µg (AI) | - | - | - |
| Infants 7–12 months | 2.5µg (AI) | - | - | - |
| Children 1–3 years | 30µg (AI) | - | - | - |
| Children 4–8 years | 55µg (AI) | - | - | - |
| Males 9–13 years | 60µg (AI) | - | - | - |
| Females 9–13 years | 60µg (AI) | - | - | - |
| Males 14–18 years | 75µg (AI) | - | - | - |
| Females 14–18 years | 75µg (AI) | - | - | - |
| Adult males 19–50 | 120µg (AI) | - | - | - |
| Adult females 19–50 | 90µg (AI) | - | - | - |
| Adult males 51+ | 120µg (AI) | - | - | - |
| Adult females 51+ | 90µg (AI) | - | - | - |
| Pregnancy (19–30) | 90µg (AI) | - | - | - |
| Lactation (19–30) | 90µg (AI) | - | - | - |
Notes
- No Tolerable Upper Intake Level (UL) has been established for vitamin K.
Source: NIH Office of Dietary Supplements: Vitamin K (snapshot 2026-04-30)