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Saw Palmetto Dosage Guide

Evidence:Moderate
·

This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

General Dosage

320mg liposterolic extract daily, standardized to 85-95% fatty acids and sterols

Maximum dose: 960mg daily has been studied in some trials without significant adverse effects

Dosage Recommendations

General recommendation: 320mg liposterolic extract daily, standardized to 85-95% fatty acids and sterols

Timing: With meals to enhance absorption of fat-soluble compounds; can be split into morning and evening doses • Take with food for best absorption.

Dosage by Condition

Benign prostatic hyperplasia (BPH)
320mg daily in 1-2 divided dosesModerate
Androgenetic alopecia
320mg daily orally or topical applicationEmerging
General prostate health
160-320mg dailyModerate

Upper limit: 960mg daily has been studied in some trials without significant adverse effects

Timing & Absorption

With meals to enhance absorption of fat-soluble compounds; can be split into morning and evening doses

Best taken with food for optimal absorption.

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References

  1. Meta-analysisTacklind J, Macdonald R, Rutks I, Stanke JU, Wilt TJ (2012). Serenoa repens for benign prostatic hyperplasia. Cochrane Database of Systematic Reviews. DOI PubMed
  2. RCTBarry MJ, Meleth S, Lee JY, et al. (2011). Effect of increasing doses of saw palmetto extract on lower urinary tract symptoms: a randomized trial. JAMA. DOI PubMed
  3. Ernst E (2002). The risk-benefit profile of commonly used herbal therapies: Ginkgo, St. John's Wort, Ginseng, Echinacea, Saw Palmetto, and Kava.. Annals of internal medicine. DOI PubMed
  4. Meta-analysisWilt TJ, Ishani A, Stark G, MacDonald R, et al. (1998). Saw palmetto extracts for treatment of benign prostatic hyperplasia: a systematic review.. JAMA. DOI PubMed
  5. ReviewAgbabiaka TB, Pittler MH, Wider B, Ernst E (2009). Serenoa repens (saw palmetto): a systematic review of adverse events.. Drug safety. DOI PubMed
  6. Ulbricht C, Basch E, Bent S, Boon H, et al. (2006). Evidence-based systematic review of saw palmetto by the Natural Standard Research Collaboration.. Journal of the Society for Integrative Oncology. DOI PubMed
  7. Kimura M, Ishii I, Baba A, Takara T (2025). Beneficial effects of saw palmetto (Serenoa repens) fruit extract on the urinary symptoms of healthy Japanese adults with possible lower urinary tract symptoms: A randomized, double-blind, placebo-controlled study.. Nutrition and health. DOI PubMed
Show 3 more references
  1. Zhou L, Zhu W, Chen Y (2025). Effects of dietary supplements on androgenetic alopecia: a systematic review and network meta-analysis.. Frontiers in nutrition. DOI PubMed
  2. Yamada S, Shirai M, Ono K, Kageyama S (2022). Beneficial Effects of Saw Palmetto Fruit Extract on Urinary Symptoms in Japanese Female Subjects by a Multicenter, Randomized, Double-Blind, Placebo-Controlled Study.. Nutrients. DOI PubMed
  3. ReviewEvron E, Juhasz M, Babadjouni A, Mesinkovska NA (2020). Natural Hair Supplement: Friend or Foe? Saw Palmetto, a Systematic Review in Alopecia.. Skin appendage disorders. DOI PubMed