NIH says most Americans already get about 108 mcg of selenium a day from food. Here is what trials of a 200 mcg capsule found for cancer, heart, thyroid and safety.
prostate health
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Saw Palmetto for Prostate Health: What 4,656 Men in Trials Found
Saw palmetto is a top-selling men's herbal supplement, but the two largest NIH-funded trials and a 2023 Cochrane review found it works no better than a placebo.