Vitamin E is a fat-soluble vitamin that encompasses a group of compounds, including tocopherols and tocotrienols, which are naturally found in foods like nuts, seeds, and green leafy vegetables. It is best known for its antioxidant properties, which help protect cells from damage caused by free radicals. Research has shown that vitamin E plays a crucial role in immune function, skin health, and cell signaling. It is particularly studied for its potential to reduce oxidative stress and its implic

How many studies on Vitamin E are available?

NutriVouch references 521 human studies on Vitamin E, all peer-reviewed and indexed on PubMed.

Is Vitamin E effective for Antioxidant Protection?

For Antioxidant Protection, Vitamin E has an effectiveness score of 7/10 — strong evidence supporting clinical use. Based on 15 relevant studies.

Is Vitamin E effective for Immune Support?

For Immune Support, Vitamin E has an effectiveness score of 4/10 — weak or limited clinical evidence. Based on 18 relevant studies.

Is Vitamin E effective for Liver Support?

For Liver Support, Vitamin E has an effectiveness score of 4/10 — weak or limited clinical evidence. Based on 21 relevant studies.

Is Vitamin E effective for Skin Health?

For Skin Health, Vitamin E has an effectiveness score of 4/10 — weak or limited clinical evidence. Based on 14 relevant studies.

Is Vitamin E effective for Menopause Support?

For Menopause Support, Vitamin E has an effectiveness score of 4/10 — weak or limited clinical evidence. Based on 14 relevant studies.

Confidence level

Strong evidence

521 studies

Vitamin E

Absorption

✦Take with a fat-containing meal for best absorption. Avoid taking with iron supplements, as they can interfere with its absorption.

Daily Dose

⚖

Common dose: 200–400 IU daily

RDA: 15 mg (22.4 IU)

Upper limit: 1,000 mg (1,500 IU)

Best form: Alpha-tocopherol (natural d-alpha-tocopherol or synthetic dl-alpha-tocopherol)

Timing: With a fat-containing meal

Long-term high doses may increase bleeding risk. Natural forms are more bioavailable than synthetic forms. Consult a healthcare provider if considering high doses.

Effects

🍇 Antioxidant Protection

Food Sources

Wheat germ oil20.32mg per tablespoon
Sunflower seeds35.17mg per 100g
Almonds25.63mg per 100g
Hazelnuts15.03mg per 100g
Peanut butter8.1mg per 100g