Research · Systematic review
Serenoa repens for benign prostatic hyperplasia
What it found
No significant benefit over placebo; even double or triple doses showed no effect on symptoms, flow, or prostate size.
- Design
- Systematic review
- Year
- 2009
- Sample size
- 5,222
- Population
- men with BPH (30 trials)
- Intervention
- saw palmetto extract vs placebo
- Outcome
- urinary symptom scores, nocturia, peak urine flow, prostate size
- Journal
- Cochrane Database of Systematic Reviews
Citation last checked 2026-06-21.