The Claim
Vitamin E supplementation increases the risk of prostate cancer in healthy men aged 50 and older, and this increased risk is not observed with selenium supplementation alone or in combination with vitamin E, indicating that the effect is specific to vitamin E and not a class effect of antioxidant supplements.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In healthy men aged 50 and older, taking vitamin E supplements is associated with a higher risk of prostate cancer, but taking selenium supplements alone or with vitamin E does not show the same increase in risk.
See the scientific wording
The increased risk of prostate cancer associated with vitamin E supplementation in healthy men aged 50 and older is not observed in men taking selenium alone or in combination, suggesting that the harmful effect is specific to vitamin E and not a class effect of antioxidant supplements.
Vitamin E changes the chemical environment inside prostate cells, causing harmful molecules to build up and damage DNA. This damage leads to abnormal cell growth that can become cancer. Selenium does not cause this change.
What the research says
1 studyStudy: Vitamin E and selenium do not decrease prostate cancer incidence: vitamin E may actually increase it
Taking vitamin E pills made healthy older men more likely to get prostate cancer, but taking selenium pills — alone or with vitamin E — didn’t increase the risk. So it’s not that all antioxidant pills are dangerous, just vitamin E.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.