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Fenugreek modestly raises total testosterone in men, but evidence is very low certaintyFenugreek Shows Small Link to Testosterone

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Key Takeaway
Interpret fenugreek's testosterone effect cautiously; evidence is very low certainty and not clinically meaningful.

This meta-analysis synthesized 13 studies evaluating oral fenugreek-derived preparations versus placebo in adult men. The primary outcomes were total and free testosterone, with secondary outcomes including sexual function, symptoms, body composition, exercise performance, and safety. The analysis found a small favorable association with total testosterone (SMD 0.25, 95% CI 0.02 to 0.48; p = 0.037), but this was based on only 6 of the 13 included studies. For free testosterone, the effect was imprecise and heterogeneous (SMD 0.08, 95% CI -0.48 to 0.63; p = 0.725).

The authors noted several limitations, including a high risk of bias in some studies and very low certainty of evidence for both primary testosterone-axis outcomes. The results for free testosterone were particularly unstable, and the overall evidence base is weak. Adverse events, serious adverse events, and discontinuations were not reported in the meta-analysis, so safety could not be assessed.

Given the very low certainty and the small magnitude of the effect, these findings do not support clinical or commercial claims that fenugreek boosts testosterone. The association is modest and may not translate into meaningful clinical benefits. Clinicians should interpret these results cautiously and consider the lack of robust evidence when discussing testosterone supplementation with patients.

Future research with larger, well-designed trials is needed to clarify whether fenugreek has any reliable effect on testosterone and related outcomes. Until then, the current evidence is insufficient to recommend fenugreek for testosterone-related purposes.

A new analysis of 13 studies looked at whether fenugreek, an herb often sold as a testosterone booster, actually raises testosterone in adult men. The studies compared oral fenugreek preparations with a placebo. The analysis found a small favorable association with total testosterone, but the evidence was very low certainty and based on only 6 of the 13 studies. For free testosterone, the results were imprecise and inconsistent, showing no clear effect.

The studies included adult men, but the analysis did not report the total number of participants or how long they took fenugreek. The researchers also noted a high risk of bias in some studies, meaning the results may not be reliable. No safety information was reported, so it is unclear if fenugreek caused any side effects.

The main limitation is the very low certainty of the evidence. The small effect on total testosterone could be due to chance or study flaws. The findings do not support the idea that fenugreek is a reliable way to boost testosterone.

For now, the evidence is too weak to recommend fenugreek for raising testosterone. Men considering it should talk to their doctor, especially since testosterone levels affect health in many ways. More rigorous studies are needed to know if fenugreek has any real benefit.

What this means for you:
Fenugreek may slightly raise total testosterone, but evidence is weak and free testosterone effects are unclear.

Common questions

Does fenugreek actually increase testosterone?

The analysis found a small favorable association with total testosterone, but the evidence is very low certainty. For free testosterone, results were imprecise and not significant. So, it's not clear that fenugreek reliably boosts testosterone.

How strong is the evidence for fenugreek's effect on testosterone?

The evidence is very low certainty for both total and free testosterone. The total testosterone finding was based on only 6 out of 13 studies, and some studies had a high risk of bias. This means the results may not be reliable.

Is fenugreek safe to take for testosterone?

The analysis did not report any safety information, such as side effects or serious adverse events. Because of this, it's not possible to say if fenugreek is safe. Always talk to your doctor before taking any supplement.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedAug 2026
View Original Abstract ↓
BackgroundFenugreek (Trigonella foenum-graecum)-derived preparations are widely marketed for male-health benefits related to testosterone, sexual function, body composition, and exercise performance, yet the certainty, target population, and clinical interpretability of the available randomized evidence remain unclear.ObjectiveTo systematically evaluate the effects of oral fenugreek-derived preparations on testosterone-axis outcomes in adult men and to descriptively summarize related male-health outcomes, including sexual function, symptoms, body composition, exercise performance, and safety.MethodsWe included randomized placebo-controlled trials in adult men that evaluated oral fenugreek-derived preparations. Two authors independently searched PubMed, Embase, the Cochrane Central Register of Controlled Trials, Web of Science, and Scopus from inception to May 11, 2026, and additionally searched ClinicalTrials.gov and the World Health Organization International Clinical Trials Registry Platform (WHO ICTRP) for unpublished or grey evidence. Total testosterone and free testosterone were the primary outcomes. Risk of bias was assessed with the Cochrane Risk of Bias 2 (RoB 2) tool, certainty of evidence was graded using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach, and the main pooled estimates were synthesized as standardized mean differences (SMDs) using random-effects models with restricted maximum likelihood (REML) estimation.ResultsThirteen studies were included, of which eight reported primary testosterone-axis data and five provided related or contextual male-health evidence. Six studies contributed to the total-testosterone meta-analysis, which showed a small favorable association with fenugreek (SMD: 0.25, 95% CI: 0.02, 0.48; p = 0.037; I2 = 0%, p = 0.578). Five studies contributed to the free-testosterone meta-analysis, for which the pooled estimate was imprecise and heterogeneous (SMD: 0.08, 95% CI: −0.48, 0.63; p = 0.725; I2 = 66.7%, p = 0.023). Across all 13 included studies, 11 were judged as having some concerns and 2 as high risk of bias; none was judged as low risk overall. The certainty of evidence for both primary testosterone-axis outcomes was very low.ConclusionOral fenugreek-derived preparations may be associated with a small favorable standardized effect on total testosterone in adult men, but the evidence is very uncertain and does not demonstrate a stable free-testosterone benefit. Current evidence does not support clinical or commercial testosterone-boosting claims.Systematic review registrationPROSPERO registration number: CRD420261364708. https://www.crd.york.ac.uk/PROSPERO/view/CRD420261364708
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