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Saw Palmetto Extract Ineffective for Prostate Symptoms

Saw palmetto is a popular supplement for men with symptoms of prostate enlargement. The botanical extract has a reputation for easing symptoms such as frequent or difficult urination. According to a new placebo-controlled study, however, that reputation is undeserved.

The scientists tested regular and high doses of saw palmetto in 369 men randomly assigned to the extract or to a placebo. The study lasted nearly a year and a half. During that time, there was no significant improvement in men taking as much as three times the usual dose of saw palmetto berry extract, but there was also no difference between the groups with respect to side effects. This is the second large placebo-controlled trial to report no improvement with saw palmetto for prostate symptoms.

[JAMA, Sept. 28, 2011]

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About the Author
Terry Graedon, PhD, is a medical anthropologist and co-host of The People’s Pharmacy radio show, co-author of The People’s Pharmacy syndicated newspaper columns and numerous books, and co-founder of The People’s Pharmacy website. Terry taught in the Duke University School of Nursing and was an adjunct assistant professor in the Department of Anthropology. She is a Fellow of the Society of Applied Anthropology. Terry is one of the country's leading authorities on the science behind folk remedies..
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