Prostate Supplements: Which Ingredients Have Evidence?
Beta-sitosterol and pygeum have the best evidence among prostate supplements, with modest gains in urinary symptoms and flow in small, short trials of 519 and 1,562 men. Saw palmetto showed little to no benefit across 27 studies. Vitamin E raised prostate cancer risk by 17% in a large trial. Lifestyle changes and prescribed medicines still come first for BPH.