Nutrition Facts with Dr. Greger Should You Take Vitamin E Supplements?
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May 15, 2025 Vitamin E supplements might not be worth the investment, as recent findings indicate dietary sources could be more beneficial. The conversation delves into the potential effects of vitamin E on cancer, immunity, and longevity. Various trials suggest that while supplementation has its perks, it can also pose risks. There's an interesting discussion on whether vitamin E or selenium can prevent or treat conditions like Alzheimer’s, raising questions about the value of over-the-counter vitamins.
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Vitamin E's Complex Effects
- Alpha-tocopherol is the only vitamin E form proven to prevent deficiency and is found in supplements.
- Vitamin E's impact on respiratory infections varies by subgroup, benefiting light smokers but harming heavy smokers outside cities.
Vitamin E's Mixed Immune Effects
- Vitamin E supplementation boosts immunity to hepatitis B and tetanus vaccines but not to pneumonia vaccines.
- Evidence on vitamin E reducing respiratory infections in elderly is inconsistent and may worsen some infections.
Vitamin E Supplements Raise Mortality
- Most meta-analyses show vitamin E supplementation slightly increases mortality risk.
- People buying vitamin E supplements may accidentally shorten their lifespan.
