Saw Palmetto Supplements: Benefits, Dosage and Safety
Saw palmetto supplements are the best-selling prostate product, but large, well-designed trials found they didn't relieve urinary symptoms of an enlarged prostate better than placebo, even at high doses. Prescription medicines work better.
Evidence at a glance
| Use | Grade | What the research shows |
|---|---|---|
| Urinary symptoms of enlarged prostate | D | No better than placebo in large NIH-funded trials. |
A: strong, consistent human evidence · B: moderate · C: limited or mixed · D: good evidence of no benefit.
Saw palmetto is a palm native to the southeastern United States.
How to take it
Not recommended for BPH. See prostate supplements for options and what to ask your doctor.
Safety and interactions
Generally well tolerated; may cause mild digestive upset or headache.
Always tell your doctor and pharmacist about the supplements you take. Check combinations with our interaction checker.
Sources
This page is for education and is not a substitute for advice from your doctor. Read our medical disclaimer.