When the SELECT trial started in 2001, there were high hopes it would prove that taking vitamin E or selenium could help prevent prostate cancer. The newest results from the trial show just the opposite—that taking selenium or vitamin E can actually increase the odds of developing prostate cancer.
Bottom line: men shouldn’t take selenium or vitamin E as a way to prevent prostate cancer, or anything else for that matter.
Although SELECT was supposed to last until 2011, it was stopped three years early because neither vitamin E nor selenium were showing any benefit—and there were hazy warning signs they might be doing some harm.
There’s nothing about if natural sources were better.