Supplement · Brain health technique
Vitamin E (high-dose)
Evidence grade: Mixed / Unclear
A fat-soluble antioxidant family (tocopherols and tocotrienols) protecting cell membranes from oxidative damage. Found in nuts, seeds, and vegetable oils; supplements often provide α-tocopherol.
- Practice
- Supplement
- Principle
- Nourishment
- Tactic
- Neuroprotective & Antioxidant Support
- Evidence grade
- Mixed / Unclear
- Strength of evidence
- Medium
How to practice Vitamin E (high-dose)
Emphasize food sources first, nuts, seeds, and olive oil. If supplementing, limit to ≤200 IU/day unless medically directed. Combined formulations with mixed tocopherols/tocotrienols are preferable. Avoid exceeding 400 IU/day long-term. Those on anticoagulants should avoid high doses due to bleeding risk.
The evidence behind Vitamin E (high-dose)
Vitamin E neutralizes lipid peroxides and protects neuronal membranes, but large RCTs show inconsistent results for cognition or mortality. High-dose supplementation (>400 IU/day) may increase bleeding risk and all-cause mortality in some studies. Benefits appear only in those with low intake or specific oxidative disorders. Balance among tocopherols and tocotrienols matters more than megadosing one form.
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