Vitamin E
Also known as: alpha-tocopherol, d-alpha-tocopherol, tocopherol, mixed tocopherols
Recommended Dosage
200–400 IU
Fat-soluble antioxidant important for cell membrane protection, immune function, and skin health. Moderate doses (200-400 IU) appear safe and beneficial. High doses (>400 IU) linked to increased mortality risk in meta-analyses. Choose mixed tocopherols and natural forms.
Quick Facts
Evidence
Grade B
Studies
2
Interactions
3
Forms
1
Evidence Rating: Grade B — Moderate Evidence
Some RCTs with positive results, or strong observational evidence. More research may refine our understanding.
Interaction Warnings
Vitamin E has anti-platelet effects — significantly increases bleeding risk with anticoagulants.
Antioxidant effects may theoretically interfere with oxidative cancer therapies.
May slightly reduce statin efficacy; clinical significance uncertain.
Important Notes
- Meta-analyses suggest doses >400 IU/day may increase all-cause mortality
- Use mixed tocopherols rather than isolated alpha-tocopherol when possible
- High doses may increase prostate cancer risk in some populations (SELECT trial)
- Natural (d-alpha) is ~2x more bioavailable than synthetic (dl-alpha)
Clinical Evidence (2 studies)
Vitamin E in human health and disease
Clarke MW et al. (2008) — Crit Rev Clin Lab Sci
Comprehensive review confirming antioxidant roles in lipid peroxidation prevention and immune function support
View on PubMedVitamin E supplementation and NAFLD: a systematic review and meta-analysis
Vogli S et al. (2023) — Nutrients
Vitamin E supplementation improved liver enzymes and histological features in NAFLD patients
View on PubMedAlternatives to Consider
These supplements target similar goals and may be worth considering alongside or instead of Vitamin E.
Grape Seed Extract
Grade BRich source of proanthocyanidins (OPCs) with strong antioxidant activity. Evidence for blood pressure reduction, skin protection, and vascular health. Well-tolerated with few side effects.
Pycnogenol
Grade BPatented French maritime pine bark extract with 400+ published studies. Evidence for cognitive function, cardiovascular health, and skin aging. Contains procyanidins similar to grape seed extract.
CoQ10 (Ubiquinol)
Grade ACritical for mitochondrial energy production. Q-SYMBIO trial showed 43% cardiovascular mortality reduction in heart failure. Depleted by statins.
Related Supplements
Grape Seed Extract
Grade B — Moderate EvidenceRich source of proanthocyanidins (OPCs) with strong antioxidant activity. Evidence for blood pressure reduction, skin protection, and vascular health. Well-tolerated with few side effects.
Pycnogenol
Grade B — Moderate EvidencePatented French maritime pine bark extract with 400+ published studies. Evidence for cognitive function, cardiovascular health, and skin aging. Contains procyanidins similar to grape seed extract.
Vitamin C
Grade A — Strong EvidenceEssential antioxidant vitamin. Supports immune function, collagen synthesis, and antioxidant defense. 50% infection reduction in athletes.
CoQ10 (Ubiquinol)
Grade A — Strong EvidenceCritical for mitochondrial energy production. Q-SYMBIO trial showed 43% cardiovascular mortality reduction in heart failure. Depleted by statins.
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⚕️ Important Disclaimer
This information is for educational purposes only. It is not medical advice. Always consult a healthcare provider before starting any supplement regimen, especially if you take medications or have health conditions.
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