Vitamin E Dosage Guide
Recommended daily intake by age and gender — based on NIH Dietary Reference Intakes.
Our assessment
Based on FDA data, the most critical safety finding for vitamin E supplements is a dose-dependent increased risk of bleeding. While vitamin E naturally present in food is not harmful, high-dose supplements (above 1,000 mg/day for adults) can reduce the blood's ability to form clots, potentially leading to serious bleeding in the brain, known as hemorrhagic stroke FDA FAERS ↗.
How it works
Vitamin E acts as a fat-soluble antioxidant that protects cell membranes from oxidative damage. In supplement form, however, high doses can interfere with the blood's clotting mechanism, increasing the risk of bleeding after a cut or injury FDA FAERS ↗.
Safety profile
Data not available for specific adverse event report counts from the FDA data provided. The known risks include an increased risk of bleeding and hemorrhagic stroke at doses exceeding the upper limit of 1,000 mg/day for adults FDA FAERS ↗. No other side effects are specified in the provided data.
Our recommendation
Do not exceed the adult upper limit of 1,000 mg/day (1,500 IU/day for natural vitamin E) without medical supervision FDA FAERS ↗. Be especially cautious if you take anticoagulant or antiplatelet medicines such as warfarin (Coumadin), as vitamin E can increase bleeding risk in combination with these drugs FDA FAERS ↗.
AI-assisted analysis. Data sourced from NIH ODS.
Understanding RDAs
Dietary Reference Intakes (DRIs) are a set of reference values used to plan and assess nutrient intakes of healthy people. They include:
- RDA (Recommended Dietary Allowance) — The average daily intake sufficient to meet the nutrient requirements of nearly all (97-98%) healthy individuals.
- AI (Adequate Intake) — Established when evidence is insufficient to develop an RDA. Based on observed nutrient intake by healthy people.
- UL (Tolerable Upper Intake Level) — The maximum daily intake unlikely to cause adverse health effects. Exceeding the UL increases the risk of toxicity.
Values vary by age, gender, and life stage (pregnancy, lactation).
Source: National Academies of Sciences, Engineering, and Medicine
Recommended Dietary Allowance
| Life Stage | Recommended Amount |
|---|---|
| Birth to 6 months | 4 mg |
| Infants 7–12 months | 5 mg |
| Children 1–3 years | 6 mg |
| Children 4–8 years | 7 mg |
| Children 9–13 years | 11 mg |
| Teens 14–18 years | 15 mg |
| Adults | 15 mg |
| Pregnant teens and women | 15 mg |
| Breastfeeding teens and women | 19 mg |
Source: National Academies of Sciences, Engineering, and Medicine