Riboflavin (B2): recommended daily intake
Reference values for riboflavin (b2) across life-stage groups, from NIH Office of Dietary Supplements: Riboflavin.
1.3mg
men
1.1mg
women
Adults 19–50.
| Life stage | RDA / AI | UL | EAR | AMDR |
|---|---|---|---|---|
| Infants 0–6 months | 0.3mg (AI) | - | - | - |
| Infants 7–12 months | 0.4mg (AI) | - | - | - |
| Children 1–3 years | 0.5mg (RDA) | - | 0.4mg | - |
| Children 4–8 years | 0.6mg (RDA) | - | 0.5mg | - |
| Males 9–13 years | 0.9mg (RDA) | - | 0.8mg | - |
| Females 9–13 years | 0.9mg (RDA) | - | 0.8mg | - |
| Males 14–18 years | 1.3mg (RDA) | - | 1.1mg | - |
| Females 14–18 years | 1mg (RDA) | - | 0.9mg | - |
| Adult males 19–50 | 1.3mg (RDA) | - | 1.1mg | - |
| Adult females 19–50 | 1.1mg (RDA) | - | 0.9mg | - |
| Adult males 51+ | 1.3mg (RDA) | - | 1.1mg | - |
| Adult females 51+ | 1.1mg (RDA) | - | 0.9mg | - |
| Pregnancy (19–30) | 1.4mg (RDA) | - | 1.2mg | - |
| Lactation (19–30) | 1.6mg (RDA) | - | 1.3mg | - |
Notes
- No Tolerable Upper Intake Level (UL) has been established for riboflavin.
Source: NIH Office of Dietary Supplements: Riboflavin (snapshot 2026-04-30)