Comparisons
Pumpkin Seed or Saw Palmetto?
Pumpkin seed (Cucurbita pepo) is eaten as a food, while saw palmetto (Serenoa repens) is sold as an extract; both are used for urinary symptoms of benign prostate enlargement. The table is built from the sourced cards of both herbs.
| Aspect | Pumpkin SeedCucurbita pepo | Saw PalmettoSerenoa repens |
|---|---|---|
| Strongest evidence | B Limited clinical evidence | — No rated benefit |
| Needs | Men’s Health, Liver, Kidney & Urinary | — |
| Form | Seed | Clay, Soap & Other |
| How to use | Adults eat 2.5–7.5 g of seeds (whole or cracked). | A clinician should first assess the cause of urinary symptoms. If a finished product is chosen, follow its own instructions and the clinician’s assessment. |
| Pregnancy | Caution | Avoid |
| Breastfeeding | Caution | Avoid |
| Recommended minimum age | From age 18 | From age 18 |
| Drug interactions | No recorded interactions | Interactions reported |
| Duration limit | Long-term use is possible | Not stated |
Which one, when?
Pumpkin Seed
In a one-year trial of 1,431 men, 5 g of pumpkin seed twice a day reduced symptom scores more than placebo; confirmatory trials are needed. Also traditionally used for overactive bladder and can be eaten long term.
Full card →Saw Palmetto
A review of 27 studies found little or no benefit on its own for prostate symptoms; the EMA assesses only one specific hexane extract under well-established use. Raised INR has been reported with warfarin.
Full card →Good to know
- The cause of urinary symptoms must first be checked by a doctor; neither is recommended under 18.
- See a doctor at once for fever, cramps, blood in the urine, painful urination or urinary retention.
Sources
- Community herbal monograph on Cucurbita pepo L., semenEMA HMPC · 2012 · MonographSource accessed:
- European Union herbal monograph on Serenoa repens (W. Bartram) Small, fructusEMA HMPC · 2015 · MonographSource accessed:
- Saw Palmetto: Usefulness and SafetyNIH NCCIH · 2025 · Official agency informationSource accessed:
- Effects of pumpkin seed in men with lower urinary tract symptoms due to benign prostatic hyperplasia in the one-year, randomized, placebo-controlled GRANU studyUrologia Internationalis · 2015 · Randomized controlled trialSource accessed: