The Journal of American Medical Association released a 1998 review stating that s aw palmetto is effective in improving urological symptoms and urine flow . For the review, 18 randomized trials with almost 3,000 male participants were analyzed; 28 percent of the men taking saw palmetto showed fewer urinary tract symptoms, 24 percent showed improvement in peak urine flow and overall urine flow improved for 43 percent of the participants. The results were comparable to the group taking Proscar — a prescribed medication — and they were much more promising than the men taking a placebo.
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