Saw palmetto

Saw palmetto is marketed for urinary symptoms and hair loss, but the higher-quality BPH evidence is not persuasive and hair evidence remains early.

Weak and mixed for BPH or hair health 6 linked sources Content audit 2026-05-05

Headline Finding

Cochrane BPH review found little or no symptom benefit versus placebo; hair-loss reviews rely on small and mixed studies.

Dose Context

Studies commonly use standardized extracts around 160-320 mg/day, but product composition varies and does not guarantee clinical effect.

Important Caveat

Urinary symptoms, prostate concerns, or hair loss deserve proper diagnosis. It should not replace proven BPH or androgenetic alopecia treatments.

Source Drawer

Linked Research

6 papers and evidence links - audit 2026-05-05

Review NCCIH saw palmetto overview
Review Cochrane BPH review
Trial BPH dose-escalation RCT
Trial NEJM BPH trial
Systematic review Alopecia systematic review
Review Alopecia supplement NMA

How To Read This Rating

The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.

Spot An Evidence Issue?

Send the disputed claim, source link, and why it changes the practical verdict. Corrections that materially affect the claim, dose, caveat, or rating are prioritized.

Report a source or rating issue