Saw Palmetto Use Shrinks Prostate Tissues, According to Study Sponsored By Nutrilite


BUENA PARK, Calif.– Regular use of a saw palmetto dietary supplement appears to shrink prostate tissues, specifically the epithelial, or glandular, tissues of the prostate, according to a study sponsored in part by Nutrilite. These findings are the result of the United States’ first randomized, double-blind, placebo-controlled clinical trial on saw palmetto and prostate health. Conducted by the Urological Sciences Research Foundation, the study is the first to actually biopsy participants’ prostate tissue to observe the effects of saw palmetto. Study investigators monitored the prostate health of 44 men during a six-month period. All the participants suffered from benign prostatic hyperplasia (BPH), commonly known as an enlarged prostate. Participants who supplemented their diet daily with 320 mg of NUTRILITE® Saw Palmetto with Nettle Root experienced modest improvements in symptoms associated with BPH, such as urinary flow rate and frequency of urination. Most importantly, biopsies revealed that participants who used saw palmetto also experienced a significant decrease in the epithelial, or glandular, component of their prostate.

“These results are good news for Americans who are increasingly interested in natural, alternative therapies,” said Dr. Varro Tyler, a well-respected pharmacognicist and author of Tyler’s Honest Herbal. “This study indicates that saw palmetto significantly decreases the growth of prostate tissue and improves BPH symptoms – without any adverse hormonal effects.”

“The 21 participants who supplemented their diet with saw palmetto were satisfied with the results. In fact, 19 elected to continue supplementing after the study concluded,” said Dr. Leonard Marks, the study’s lead investigator, clinical associate professor in the Department of Urology with the University of California at Los Angeles School of Medicine and founder of the Urological Sciences Research Foundation. “I believe urologists may now consider saw palmetto a viable, natural, alternative treatment for many men with BPH.” The results of the study are consistent with a November 1998 literature review of the effects of saw palmetto on BPH published in the Journal of the American Medical Association.

Dr. Marks will present the study results orally on May 4 and as a poster session on May 5 at the Annual Meeting of the American Urological Association in Dallas, Texas. Dr. Marks and Dr. Tyler have authored an editorial for the March edition of Urology, clarifying the use of saw palmetto for men with symptomatic BPH.

Nutrilite, a division of Amway Corp., is one of the world’s largest manufacturers of branded vitamins and minerals in tablet form. One of the few supplement manufacturers to grow, harvest and process its own plant concentrates for use in its products, Nutrilite is committed to total quality control from seed to tablet. Nutrilite’s research facility, the REHNBORG CENTER™ for Nutrition and Wellness, is dedicated to providing reliable, high quality clinical research to increase awareness of the benefits of herbal and plant-based products.

Founded in 1992, the Urological Sciences Research Foundation is a non-profit organization based in Culver City, Calif. The foundation’s mission is to help advance the understanding of common urologic problems, increase the range of effective treatments for such conditions, and inform the medical and lay public of these problems and treatments.

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