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ingestible · for men's health & prostate support

Pumpkin Seed Oil

Reviewed by the Nimbera editorial team · Last updated May 2026

Gossell-Williams et al. 2006 RCT (J Med Food, PMID 20098586) - 47 men with BPH taking pumpkin seed oil (320 mg/day) for 3 months showed significant improvements in IPSS urinary symptom scores and quality of life vs placebo (p < 0.05). Research base is smaller than for saw palmetto but evidence is consistent.$10-$20/month.

How to use

Take 320-640 mg/day of pumpkin seed oil (in capsule form) with food, or consume 30-50 g of whole pumpkin seeds daily as a snack. Oil capsules provide more consistent dosing. Allow 3-6 months of consistent use to assess effect on urinary symptoms.

How it works

Pumpkin seed oil is rich in zinc, delta-7-sterols (structurally similar to cholesterol but blocking DHT binding to prostate tissue receptors), and anti-inflammatory unsaturated fatty acids. These sterols competitively inhibit DHT at prostate androgen receptors, reducing smooth muscle tone in the prostate and potentially reducing enlargement-related urinary obstruction.

Where to buy

NOW Foods Pumpkin Seed Oil ($10-$15/100 softgels), cold-pressed pumpkin seed oil for culinary use ($10-$20/250 ml) - at health food stores and online.

Typical cost: $10-$20/month.

Safety notes

Very safe nutritional supplement. No significant drug interactions at standard doses. May cause mild GI effects if taken on an empty stomach. Ensure product uses cold-pressed or CO2-extracted oil for best phytosterol content - heat-refined pumpkin oil loses much of its biological activity. As with all prostate supplements, do not use to delay evaluation of urinary symptoms by a doctor.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

Gossell-Williams et al. 2006 - J Med Food (PMID 20098586)

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.