Fenugreek
Also known as 4-hydroxyisoleucine, fenugreek seed, methi, trigonella foenum-graecum
Key takeaways
- Meta-analysis confirms fenugreek's effectiveness in managing type 2 diabetes and prediabetes (PMID: 37762302).
- Fenugreek extract supplementation is associated with increased testosterone levels in males (PMID: 32048383).
- Fenugreek seeds significantly lower blood glucose and serum lipids in type I diabetes (PMID: 2194788).
What the research shows
AI-synthesized from 14 peer-reviewed sources · Updated 2025
Fenugreek is a botanical supplement used primarily for glycemic control and hormonal support. Research indicates it is generally effective in lowering blood glucose levels in diabetic and prediabetic populations and may influence testosterone levels in men.
By condition
Type 2 Diabetes and Prediabetes
Strong
Multiple meta-analyses and RCTs demonstrate significant efficacy in lowering blood glucose and improving glycemic control.
Testosterone Levels
Moderate
Meta-analyses suggest a positive effect on testosterone levels in males, though individual RCT results vary.
Lactation/Breast Milk Production
Weak
Preliminary evidence suggests it may increase the quantity of breast milk and prolactin levels in mothers.
Perimenopausal Symptoms
Weak
A single RCT suggests it may alleviate vasomotor symptoms and depression in perimenopausal women.
Effective doses
Specific dose ranges were not provided in the provided abstracts, though administration methods include seed supplementation, extracts, and fortified foods (e.g., fenugreek bread).
Safety & interactions
Fenugreek is identified as an emergent allergen (NCT06257797) and may interact with glucose-lowering medications due to its hypoglycemic effects.
Limitations
Some studies have very small sample sizes (e.g., N=12), and there is a lack of standardized dosing across the different forms of the supplement (seeds vs. extracts).
Top-rated Fenugreek products
Ranked by safety score and evidence coverage
How it's sold
Data aggregated from 280 product labels
Research evidence
Showing top 10 of 14 sources, sorted by quality
**Kim et al., 2023** | Int J Mol Sci | Meta Analysis Kim Jiwon, Noh Woojeong, ... Kim Young-Sik. The Effect of Fenugreek in Type 2 Diabetes and Prediabetes: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Int J Mol Sc…
**Najdi et al., 2019** | Afr Health Sci | Rct Najdi Rania A, Hagras Magda M, ... Magadmi Rania M. A randomized controlled clinical trial evaluating the effect of Trigonella foenum-graecum (fenugreek) versus glibenclamide in patients with di…
**Hadi et al., 2020** | Complement Ther Med | Rct Hadi Amir, Arab Arman, ... Tavakoly Rahele. The effect of fenugreek seed supplementation on serum irisin levels, blood pressure, and liver and kidney function in patients with type 2 diabete…
**Correia et al., 2023** | Phytother Res | Meta Analysis Correia Alisson Guilherme da Silva, Alencar Matheus Batista, ... de Andrade Joseilze Santos. Effect of saffron and fenugreek on lowering blood glucose: A systematic review with meta-a…
**Gong et al., 2016** | J Ethnopharmacol | Meta Analysis Gong Jing, Fang Ke, ... Lu Fuer. Effect of fenugreek on hyperglycaemia and hyperlipidemia in diabetes and prediabetes: A meta-analysis. J Ethnopharmacol. 2016-Dec-24;194:260-268. doi:…
**Mansoori et al., 2020** | Phytother Res | Meta Analysis Mansoori Anahita, Hosseini Seyedahmad, ... Fathi Mojdeh. Effect of fenugreek extract supplement on testosterone levels in male: A meta-analysis of clinical trials. Phytother Res. 202…
**Rouhi et al., 2025** | Curr Drug Res Rev | Rct Rouhi Mahsa, Hossieni Mohammad Bagher, ... Mirghafourvand Mojgan. Investigating the Effectiveness of Fenugreek on the Quantity of Breast Milk and the Level of Prolactin in Mothers of Preterm …
**Lu et al., 2008** | Chin J Integr Med | Rct Lu Fu-rong, Shen Lin, ... Dai Yi. Clinical observation on trigonella foenum-graecum L. total saponins in combination with sulfonylureas in the treatment of type 2 diabetes mellitus. Chin J Integ…
**NCT ID**: NCT07038577 **Phase**: NA **Status**: COMPLETED **Enrollment**: 80 **Completion**: 2025-06-01
**Losso et al., 2009** | J Med Food | Rct Losso Jack N, Holliday Darryl L, ... Greenway Frank L. Fenugreek bread: a treatment for diabetes mellitus. J Med Food. 2009-Oct;12(5):1046-9. doi:10.1089/jmf.2008.0199 Use of fenugreek, a food with …
Frequently asked questions
What is fenugreek and what is it used for?
Fenugreek is a botanical supplement primarily used for glycemic control and hormonal support. Research indicates it is generally effective in lowering blood glucose levels and may influence testosterone levels in men. It is also sometimes used to support lactation, though evidence for this is weaker.
Does fenugreek work for type 2 diabetes?
Yes, there is strong evidence that fenugreek is effective in lowering blood glucose and improving glycemic control in people with type 2 diabetes and prediabetes. Multiple meta-analyses and randomized controlled trials confirm its efficacy for this condition. However, it should not replace prescribed medication without medical supervision.
Can fenugreek increase testosterone levels?
There is moderate evidence suggesting that fenugreek may have a positive effect on testosterone levels in males. While meta-analyses indicate a benefit, individual study results can vary. You should consult a healthcare provider to determine if it is appropriate for your specific health goals.
Is fenugreek safe for breastfeeding mothers?
Preliminary evidence suggests fenugreek may increase breast milk quantity and prolactin levels, but the evidence is considered weak. Because research is limited, it is important to consult a healthcare provider before using it for lactation support to ensure safety for both mother and baby.
What are the safety risks and side effects of fenugreek?
Fenugreek is identified as an emergent allergen and may cause hypoglycemic effects. It is crucial to consult a healthcare provider before use, especially if you have allergies or are managing blood sugar levels. Never use supplements to replace prescribed medication without professional advice.
Who should avoid taking fenugreek?
Individuals taking glucose-lowering medications should avoid fenugreek or use it only under strict medical supervision due to the risk of interacting with these drugs. Pregnant women and those with known allergies to the plant should also avoid it. Always consult a healthcare provider to assess personal risks.
Does fenugreek help with perimenopausal symptoms?
Evidence for this use is weak, based on a single randomized controlled trial suggesting it may alleviate vasomotor symptoms and depression. Because the research is limited, you should consult a healthcare provider to discuss safer, more established treatment options for perimenopausal symptoms.