Threonine: recommended daily intake
Reference values for threonine across life-stage groups, from National Academies: DRIs for Protein and Amino Acids (2005).
1.05 g/day
Adults 19–50.
| Life stage | RDA / AI | UL | EAR | AMDR |
|---|---|---|---|---|
| Infants 0–6 months | - | - | - | - |
| Infants 7–12 months | - | - | - | - |
| Children 1–3 years | - | - | - | - |
| Children 4–8 years | - | - | - | - |
| Males 9–13 years | - | - | - | - |
| Females 9–13 years | - | - | - | - |
| Males 14–18 years | - | - | - | - |
| Females 14–18 years | - | - | - | - |
| Adult males 19–50 | 1.05g (RDA) | - | - | - |
| Adult females 19–50 | 1.05g (RDA) | - | - | - |
| Adult males 51+ | 1.05g (RDA) | - | - | - |
| Adult females 51+ | 1.05g (RDA) | - | - | - |
| Pregnancy (19–30) | 1.05g (RDA) | - | - | - |
| Lactation (19–30) | 1.05g (RDA) | - | - | - |
Notes
- RDA converted from mg/kg/day using reference body weight of 70 kg.
Source: National Academies: DRIs for Protein and Amino Acids (2005) (snapshot 2026-04-30)