Fat-soluble antioxidant and cellular protection

Vitamin E

Vitamin E is a fat-soluble antioxidant protecting cell membranes. Evidence for disease prevention in replete adults is weak; dietary insufficiency is common. High-dose supplementation has raised safety concerns in trials (SELECT, HOPE).

Evidence Level B

Evidence and Risk Labels

Evidence A/B/C reflects research maturity, and risk levels reflect monitoring needs. These labels support comparison, not diagnosis or treatment decisions.

See full scoring guide

Clinical Snapshot

Effect Size
Minimal in well-nourished adults; modest antioxidant support at dietary doses
Safety
Moderate Risk

High doses (>400 IU/day) may increase all-cause mortality in meta-analyses; increases bleeding risk at high doses; avoid high-dose supplementation without clear indication.

Research Dosing

This reflects common ranges and protocols used in published studies, not personal medical advice.

Typical Daily Dose
15 mg RDA; supplemental range 100-200 IU if warranted
Timing
With fat-containing meal
Protocol Duration in Studies
Ongoing at low doses; avoid chronic high-dose

Mixed tocopherols (particularly gamma-tocopherol) are preferred over isolated alpha-tocopherol supplements.

Best Fit Profiles

  • dietary insufficiency correction and antioxidant network support at low-moderate doses

Source Links