Initially Posted: 09/19/2015 | Last Updated: 11/04/2019
Supplements for Prostate Health Reviewed by ConsumerLab.com.

Saw palmetto and beta-sitosterol supplements compared in this review

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New Chapter Prostate 5 LX

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Source Naturals Mega Strength Beta Sitosterol

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Pure Encapsulations Beta-sitosterol

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Botanic Choice Beta Sitosterol Plus

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Dr. David Williams Healthy Prostate

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Gaia Herbs Saw Palmetto Berry

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GNC Herbal Plus Saw Palmetto Extract

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GNC Men's Prostate Formula

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Life Extension Ultra Natural Prostrate

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Nature's Bounty Saw Palmetto Complex

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NOW Prostate Health

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Prostanew

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Prostavar RX

Puritan's Pride Prosta-Metto

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Rexall Saw Palmetto

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Spring Valley [Walmart] Saw Palmetto

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Vitacost Saw Palmetto

Vitamin World Prosta-Metto

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Summary

  • Two popular supplements for treating the symptoms of benign prostate hyperplasia (BPH) are saw palmetto and beta-sitosterol -- a compound derived from saw palmetto as well as other plants (see What It Is).
  • Beta-sitosterol has been found in most, but not all studies, to significantly improve perceived symptoms of BPH and urine rate flow (see Beta-Sitosterol — What It Does). Doses used in clinical studies range from 30 mg to 91 mg daily (see Beta-Sitosterol — What to Consider When Buying).
  • The evidence for saw palmetto is less impressive. It may, at best, modestly improve certain urinary symptoms and help to shrink the inner lining of the prostate, but it does not decrease its overall size. A typical dose is 320 mg per day of extract standardized to 85% to 95% fatty acids) (see Saw Palmetto -- What to Consider When Buying).
  • ConsumerLab.com's tests identified a number of saw palmetto and beta-sitosterol supplements that contained the generally recommended amounts of these ingredients. However, one saw palmetto product was found to contain fewer fatty acids than expected, and two saw palmetto/beta-sitosterol combination products were found to be improperly labeled (see What CL Found).
  • Among all of the prostate supplements approved for their quality in this Review, ConsumerLab selected a Top Pick that also provided a correct dose and formula for treating symptoms of BPH.
  • Beta-sitosterol and saw palmetto are generally well tolerated, although some individuals experience nausea or other gastrointestinal symptoms. Be sure to check with a healthcare professional for a proper diagnosis before using, since symptoms of enlarged prostate may signal more serious conditions that require prompt medical treatment (see Concerns and Cautions).
In this comprehensive review of saw palmetto and beta-sitosterol supplements for prostate health, you'll get test results and comparisons for 16 supplements (including seven that passed our voluntary Quality Certification Program). You'll also find out about two products which are similar to one of the products we tested. You'll learn:
  • Which saw palmetto and beta-sitosterol supplements passed or failed ConsumerLab.com's testing and review
  • What saw palmetto and beta-sitosterol can and cannot do for your health
  • Which other ingredients in prostate formulas (such as Pygeum, pumpkin seed, nettle, selenium, and zinc) may or may not be helpful
  • The dosages of saw palmetto and beta-sitosterol used in treating prostate enlargement 
  • Potential side-effects of saw palmetto and beta-sitosterol

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