Saw Palmetto
Berry extract traditionally used for benign prostatic hyperplasia (BPH) & hair loss; evidence is mixed.
Evidence last reviewed: 04 Apr 2026
Saw palmetto is a berry extract with mixed evidence for treating benign prostatic hyperplasia (BPH) and hair loss. Its effectiveness remains debated, and it may carry some risks.
May suppress PSA (prostate-specific antigen) levels, potentially masking prostate conditions — always inform your doctor if PSA testing is planned
Possible hormonal effects — theoretical concern for hormone-sensitive conditions
Summarized study outcomes with population, design, grade, and effect data.
The evidence for saw palmetto's effectiveness in alleviating BPH symptoms is mixed, with some studies suggesting benefits while a large NIH-funded trial found no significant improvement over placebo. The overall strength of evidence is low, and further research is needed to clarify its role.
BPH symptoms / urinary flowMen with mild-moderate BPH · Meta-analyses (conflicting)Low
Some meta-analyses show benefit; large NIH-funded RCT found no improvement vs placebo. Effect remains debated.
Stacks containing Saw Palmetto
Public community stacks that include this ingredient.