Complementary Health Approaches

Frequently Asked Questions

23. What has NIH-sponsored research shown about vitamin E and prostate cancer?

A large study of vitamin E and selenium supplementation in older men, called SELECT (for Selenium and Vitamin E Cancer Prevention Trial), found that the two types of supplements, taken alone or together, did not reduce the risk of prostate cancer. In fact, men who took vitamin E alone had a higher rate of prostate cancer than those who took a placebo (pills containing only inactive substances). There was no increase in prostate cancer when vitamin E and selenium were taken together.