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Vitamin E (Tocopherols & Tocotrienols)
Lipid-soluble antioxidant that shields cell membranes from oxidative damage — natural mixed tocopherols preferred over synthetic forms.
What the evidence says
Vitamin E appears to help in 14 of 14 studies with measurable effects — the evidence leans clearly favourable.
Most evidence is from high-quality meta-analyses and randomised trials published 1997–2026 with a typical study size of 459 participants.
Based on 117 studies · 37 meta-analyses · 21 RCTs · 684,898 total participants
Confidence
HighWhat the studies found
By outcome
Vitamin E has an evidence score of 9/10 — very strong evidence based on 117 indexed studies, including 30 meta-analyses. Lipid-soluble antioxidant that shields cell membranes from oxidative damage — natural mixed tocopherols preferred over synthetic forms.
The commonly studied dose of Vitamin E is 100-400 IU daily (natural d-alpha-tocopherol). Research points to an estimated optimal dose around 400IU, with a minimum effective dose near 100IU. Individual response varies — start low and adjust.
The best time to take Vitamin E is with meals. Take it with food. Vitamin E encompasses eight fat-soluble compounds (four tocopherols and four tocotrienols) that require dietary fat, bile acids, and pancreatic lipase for absorption.
Last reviewed May 2026 · evidence from 40 studies · how we score
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
Vitamin E is a family of eight fat-soluble compounds: four tocopherols and four tocotrienols. Alpha-tocopherol is the most biologically active form in humans. It functions primarily as a lipid-soluble antioxidant, protecting cell membranes from oxidative damage. It's important for skin health, immune function, and may support cardiovascular health. Natural mixed tocopherols are preferred over synthetic dl-alpha-tocopherol.
Protects cell membranes from oxidation
Enhances immune cell function
Protects skin from UV and oxidative damage
How Vitamin E works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
100-400 IU daily (natural d-alpha-tocopherol)
Loading: Not required
Take with food
| Form | Type |
|---|---|
| 💊Natural mixed tocopherols (d-alpha, beta, gamma, delta) | Recommended |
| 💊d-alpha-tocopherol (natural) | Alternative |
| 💊Mixed tocotrienols | Alternative |
| 💊dl-alpha-tocopherol (synthetic, less preferred) | Alternative |
Natural 'd' forms are better retained than synthetic 'dl' forms. Mixed tocopherols/tocotrienols provide broader benefits than alpha alone.
Minimum: 4 weeks
Optimal: 12 weeks
Cycling: Not required
Note: Fat-soluble; absorption significantly improved with dietary fat. Natural form (d-alpha) is preferred over synthetic (dl-alpha).
You can get vitamin e from these foods and drinks. Doses are typical per-serving estimates — actual content varies by brand, brew, cooking, etc.
7.3 mg per oz
1 oz (~23 almonds). About half the RDA.
7.4 mg per oz
1 oz hulled, dry-roasted.
Based on meta-analysis showing 14.14 mmHg reduction in SBP. Effect size is modest and bleeding risk increases above 400 IU daily. Natural d-alpha-tocopherol preferred over synthetic forms.
Reduced oxidative stress markers
Improved skin texture and UV protection
Enhanced immune function, especially in elderly
High doses may increase bleeding risk
Limit to 100-200 IU/day; monitor with doctor
May enhance anticoagulant effects
May interfere with some treatments; consult oncologist
May reduce some statin side effects
Tip: Stay under 400 IU/day; stop before surgery
Tip: Take with food
Vitamin E is generally safe at recommended doses, with a few precautions worth noting. The most commonly reported side effects are increased bleeding risk, nausea. Use caution if any of these apply to you: Vitamin K deficiency; Bleeding disorders; History of heart failure (high doses ≥400 IU/day).
Vitamin D3
Probably helpsHormone-like vitamin that regulates 1,000+ genes — deficiency is widespread and linked to poor immunity, depression, and bone loss.
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