Nutrition Facts with Dr. Greger

Should You Take Vitamin E Supplements?

14 snips
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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INSIGHT

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.
INSIGHT

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.
INSIGHT

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.
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