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Saturday, October 22, 2011

NIH-funded study shows increased prostate cancer risk from vitamin E supplements

Still think they have any idea what a "safe" supplement is?
Men who took 400 international units (I.U.) of vitamin E daily had more prostate cancers compared to men who took a placebo, according to an updated review of data from the Selenium and Vitamin E Cancer Prevention Trial (SELECT). The findings showed that, per 1,000 men, there were 76 prostate cancers in men who took only vitamin E supplements, vs. 65 in men on placebo over a seven-year period, or 11 more cases of prostate cancer per 1,000 men. This represents a 17 percent increase in prostate cancers relative to those who took a placebo. This difference was statistically significant and therefore is not likely due to chance. The results of this update appeared Oct. 12, 2011, in the Journal of the American Medical Association.

SWOG, an international network of research institutions, carried out SELECT at more than 400 clinical sites in the United States, Puerto Rico, and Canada. SELECT was funded by the National Cancer Institute (NCI) and other institutes that comprise the National Institutes of Health.

"Based on these results and the results of large cardiovascular studies using vitamin E, there is no reason for men in the general population to take the dose of vitamin E used in SELECT as the supplements have shown no benefit and some very real risks," said Eric Klein, M.D., a study co-chair for SELECT, and a physician at the Cleveland Clinic. "For now, men who were part of SELECT should continue to see their primary care physician or urologist and bring these results to their attention for further consideration."
Think again.

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