Fenugreek for Free Testosterone Increase
Some trials show small increases in free testosterone, but effect sizes are modest and sponsorship is a concern.
Overview
Verdict
How It Works
Dosing & Protocol
Typical dose
- Recommended dose
- 500-600 mg/day of a standardised fenugreek seed extract (such as Testofen at 600 mg/day), taken with food, for 8-12 weeks
- Expected timeframe
- 8-12 weeks
Protocol
- form
- Standardised extract - the trials used branded preparations (Testofen, Furosap) standardised for saponin content, and plain seed powder is not equivalent at these doses
- duration
- 8-12 weeks, with morning total and free testosterone at baseline and end
- co factor
- Take with food. Evidence is mixed. Several randomised placebo-controlled trials of 500-600 mg/day standardised extract report modest increases in free testosterone, sometimes with improved libido and body composition, and a meta-analysis found a small positive effect. But most trials are small, short, and funded by the extract manufacturers, several found no change, and the proposed mechanism - inhibition of aromatase and 5-alpha-reductase leaving more free testosterone - is not consistently demonstrated. Effects on total testosterone are weaker than on free.
- titration
- No titration; the dose is fixed. Do not stack multiple testosterone-marketed products
- starting dose
- 500-600 mg/day of a standardised furostanolic saponin extract, taken with a meal, either as a single dose or split
Evidence
What the studies say
Effect of fenugreek extract supplement on testosterone levels in male: A meta-analysis of clinical trials
Mansoori A, Hosseini S, Zilaee M +2 more
Fenugreek extract supplementation significantly increased total testosterone levels compared with placebo.
Safety
Caveats
Confirm genuinely low testosterone with two morning blood tests plus LH, FSH and prolactin before pursuing supplements - secondary hypogonadism can signal pituitary disease. Weight loss, treating sleep apnoea, sleep and resistance training raise testosterone more reliably than any herb. Safety: fenugreek has anticoagulant properties, so avoid with warfarin, DOACs, aspirin and clopidogrel and stop two weeks before surgery. It lowers blood glucose and compounds insulin and sulfonylureas, risking hypoglycaemia. Its fibre reduces absorption of other oral drugs - separate by two hours. Contraindicated in pregnancy (uterine stimulant, traditional labour inducer) and avoid in hormone-sensitive cancers, including prostate cancer, without specialist advice. Avoid with peanut or chickpea allergy. Expect maple-syrup body odour, wind and loose stools. Testosterone-marketed supplements are a common source of undeclared anabolic contamination - choose batch-tested products.
Less likely to help if
Medical Disclaimer
The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.
Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.