Vitamin C: recommended daily intake
Reference values for vitamin c across life-stage groups, from NIH Office of Dietary Supplements: Vitamin C.
90mg
men
75mg
women
Adults 19–50.
| Life stage | RDA / AI | UL | EAR | AMDR |
|---|---|---|---|---|
| Infants 0–6 months | 40mg (AI) | - | - | - |
| Infants 7–12 months | 50mg (AI) | - | - | - |
| Children 1–3 years | 15mg (RDA) | 400mg | 13mg | - |
| Children 4–8 years | 25mg (RDA) | 650mg | 22mg | - |
| Males 9–13 years | 45mg (RDA) | 1200mg | 39mg | - |
| Females 9–13 years | 45mg (RDA) | 1200mg | 39mg | - |
| Males 14–18 years | 75mg (RDA) | 1800mg | 63mg | - |
| Females 14–18 years | 65mg (RDA) | 1800mg | 56mg | - |
| Adult males 19–50 | 90mg (RDA) | 2000mg | 75mg | - |
| Adult females 19–50 | 75mg (RDA) | 2000mg | 60mg | - |
| Adult males 51+ | 90mg (RDA) | 2000mg | 75mg | - |
| Adult females 51+ | 75mg (RDA) | 2000mg | 60mg | - |
| Pregnancy (19–30) | 85mg (RDA) | 2000mg | 70mg | - |
| Lactation (19–30) | 120mg (RDA) | 2000mg | 100mg | - |
Notes
- Smokers require an additional 35 mg/day above the listed RDA.
Source: NIH Office of Dietary Supplements: Vitamin C (snapshot 2026-04-30)