Initial, independent review of study data from the Selenium and Vitamin E Cancer Prevention Trial (SELECT) shows that selenium and vitamin E supplements, taken either alone or together, did not prevent prostate cancer. The data also showed two concerning trends among the over 35,000 men age 50 and older in the trial: small but not statistically significant increases in the number of prostate cancer cases in the men taking only vitamin E and in the number of cases of adult onset diabetes in men taking only selenium. Because this is an early analysis of the data, neither of these findings proves an increased risk from the supplements; both may be due to chance.
Initial, independent review of study data from the Selenium and Vitamin E Cancer Prevention Trial (SELECT) shows that selenium and vitamin E supplements, taken either alone or together, did not prevent prostate cancer. The data also showed two concerning trends among the over 35,000 men age 50 and older in the trial: small but not statistically significant increases in the number of prostate cancer cases in the men taking only vitamin E and in the number of cases of adult onset diabetes in men taking only selenium. Because this is an early analysis of the data, neither of these findings proves an increased risk from the supplements; both may be due to chance. 
