Fenugreek

Western herbalists have used fenugreek seed as a demulcent and nutritive tonic: for irritated digestive and respiratory linings, for convalescence and poor appetite, and as a poultice for inflamed skin and wounds.

Its best-known traditional use is as a galactagogue to support milk supply while breastfeeding, and it remains one of the most popular over-the-counter herbs for that purpose.

Methi seed is a warming, bitter-pungent digestive and metabolic remedy, and the leaf is eaten as a vegetable.

Fenugreek also has a reputation in Ayurveda as a uterine stimulant, used to encourage labour.

The seed is Hu Lu Ba, a warming kidney tonic used for cold, deficient patterns and for abdominal or hernial pain.

Meta-analyses of randomized trials in type 2 diabetes and prediabetes report reductions in HbA1c. Two of the three also found significant falls in fasting glucose and 2-hour post-load glucose ^{2,3Reference 2Kim et al. · 2023Meta-analysisThe Effect of Fenugreek in Type 2 Diabetes and Prediabetes: A Systematic Review and Meta-Analysis of Randomized Controlled TrialsView study →Reference 3Gong et al. · 2016Meta-analysisEffect of fenugreek on hyperglycaemia and hyperlipidemia in diabetes and prediabetes: A meta-analysisView study →}; the third found only the HbA1c reduction significant ^{1Reference 1Shabil et al. · 2023Meta-analysisEffect of Fenugreek on Hyperglycemia: A Systematic Review and Meta-AnalysisView study →}. Heterogeneity between trials is high.

A 2023 dose-response meta-analysis of 29 RCTs on the components of metabolic syndrome found fasting glucose fell by about 17 mg/dL ^{4Reference 4Fakhr et al. · 2023Meta-analysisEffects of fenugreek supplementation on the components of metabolic syndrome: A systematic review and dose-response meta-analysis of randomized clinical trialsView study →}.

Two mechanisms are proposed: the soluble galactomannan fibre forms a viscous gel that slows gastric emptying and carbohydrate absorption, and the amino acid 4-hydroxyisoleucine stimulates glucose-dependent insulin secretion ^{35Reference 35Fuller et al. · 2015ReviewDiosgenin, 4-hydroxyisoleucine, and fiber from fenugreek: mechanisms of actions and potential effects on metabolic syndrome — reviewView study →}. A small 2025 crossover trial using continuous glucose monitoring found defatted seed flakes cut 24-hour glucose excursions in people with type 2 diabetes ^{5Reference 5Deshpande et al. · 2025RCTEffect of ‘Fenuflakes’ on 24-hour glycemic variability in adults with type 2 diabetes: A randomized crossover continuous glucose monitoring studyView study →}.

Doses in these trials range from about 5 g to 100 g of whole or defatted seed a day ^{4Reference 4Fakhr et al. · 2023Meta-analysisEffects of fenugreek supplementation on the components of metabolic syndrome: A systematic review and dose-response meta-analysis of randomized clinical trialsView study →}.

Gap: Trials are small, geographically clustered (largely India and Iran), varied in preparation and dose, and often at high risk of bias; no large multi-centre RCT has been done.

Pooled analyses of randomized trials report significant reductions in total cholesterol, LDL cholesterol and triglycerides, and a small rise in HDL cholesterol ^{7,8Reference 7Heshmat-Ghahdarijani et al. · 2020Meta-analysisEffect of fenugreek consumption on serum lipid profile: A systematic review and meta-analysisView study →Reference 8Askarpour et al. · 2020Meta-analysisEffect of fenugreek supplementation on blood lipids and body weight: A systematic review and meta-analysis of randomized controlled trialsView study →}. In one meta-analysis of 12 trials, total cholesterol fell by about 9 mg/dL and HDL rose by about 3.5 mg/dL ^{8Reference 8Askarpour et al. · 2020Meta-analysisEffect of fenugreek supplementation on blood lipids and body weight: A systematic review and meta-analysis of randomized controlled trialsView study →}.

A cardiometabolic meta-analysis found improvements in fasting glucose and some blood-pressure measures alongside the lipid changes ^{9Reference 9Khodamoradi et al. · 2020Meta-analysisThe Effects of Fenugreek on Cardiometabolic Risk Factors in Adults: A Systematic Review and Meta-analysisView study →}, and the metabolic-syndrome dose-response analysis reported higher HDL and lower triglycerides and waist circumference ^{4Reference 4Fakhr et al. · 2023Meta-analysisEffects of fenugreek supplementation on the components of metabolic syndrome: A systematic review and dose-response meta-analysis of randomized clinical trialsView study →}.

The effect is attributed to the soluble fibre, which binds bile acids and reduces cholesterol absorption, and to the saponins, with diosgenin linked to reduced cholesterol handling in the liver ^{35Reference 35Fuller et al. · 2015ReviewDiosgenin, 4-hydroxyisoleucine, and fiber from fenugreek: mechanisms of actions and potential effects on metabolic syndrome — reviewView study →}. The changes are small, heterogeneity is high, and effects beyond a few months are untested.

A meta-analysis of four trials found a significant increase in total testosterone with fenugreek extract ^{10Reference 10Mansoori et al. · 2020Meta-analysisEffect of fenugreek extract supplement on testosterone levels in male: A meta-analysis of clinical trialsView study →}. A meta-analysis of seven studies (449 participants) found a small effect on total testosterone (SMD 0.32) and no significant effect on free testosterone ^{11Reference 11Isenmann et al. · 2023Meta-analysisThe Anabolic Effect of Fenugreek: A Systematic Review with Meta-analysisView study →}.

A systematic review of herbs and testosterone concluded fenugreek seed extract is one of only two herbs with positive human evidence ^{12Reference 12Smith et al. · 2021Systematic reviewExamining the Effects of Herbs on Testosterone Concentrations in Men: A Systematic ReviewView study →}.

Positive trials use standardized extracts: Testofen 600 mg/day ^{13Reference 13Rao et al. · 2016RCTTestofen, a specialised Trigonella foenum-graecum seed extract reduces age-related symptoms of androgen decrease — double-blind randomised clinical studyView study →}, a Fenu-FG glycoside fraction ^{18Reference 18Wankhede et al. · 2016RCTBeneficial effects of fenugreek glycoside supplementation in male subjects during resistance training: A randomized controlled pilot studyView study →}, and Trigozim at up to 1800 mg/day ^{15Reference 15Lee-Ødegård et al. · 2024RCTEffect of a plant extract of fenugreek on testosterone in blood plasma and saliva — double blind randomized controlled intervention studyView study →}. In the Trigozim trial, total testosterone rose against baseline but not significantly against placebo ^{15Reference 15Lee-Ødegård et al. · 2024RCTEffect of a plant extract of fenugreek on testosterone in blood plasma and saliva — double blind randomized controlled intervention studyView study →}.

The proposed mechanism, aromatase and 5α-reductase modulation by furostanol saponins, is inferred rather than demonstrated in humans.

Gap: Effects are small, come from proprietary extracts, are often manufacturer-sponsored, and free-testosterone results are inconsistent; culinary seed has not been shown to raise testosterone.

Standardized fenugreek seed extracts have improved self-reported sexual function in randomized trials in both sexes. In aging men, Testofen 600 mg/day for 12 weeks improved sexual function scores and morning erections alongside increases in testosterone ^{13Reference 13Rao et al. · 2016RCTTestofen, a specialised Trigonella foenum-graecum seed extract reduces age-related symptoms of androgen decrease — double-blind randomised clinical studyView study →}. A 6-week trial reported gains in the arousal and orgasm subdomains, with serum testosterone staying within the normal range ^{14Reference 14Steels et al. · 2011RCTPhysiological aspects of male libido enhanced by standardized Trigonella foenum-graecum extract — randomized placebo-controlled trialView study →}.

In healthy menstruating women reporting low drive, the Libifem extract raised free testosterone and estradiol and improved sexual-function scores over two cycles ^{17Reference 17Rao et al. · 2015RCTInfluence of a Specialized Trigonella foenum-graecum Seed Extract (Libifem) on Testosterone, Estradiol and Sexual Function in Healthy Menstruating Women — randomised placebo-controlled studyView study →}. A perimenopausal-symptom trial also noted improvements in mood ^{25Reference 25Khanna et al. · 2020RCTEfficacy of a novel extract of fenugreek seeds in alleviating vasomotor symptoms and depression in perimenopausal women: A randomized, double-blinded, placebo-controlled studyView study →}.

The libido effect without a testosterone change in one male trial ^{14Reference 14Steels et al. · 2011RCTPhysiological aspects of male libido enhanced by standardized Trigonella foenum-graecum extract — randomized placebo-controlled trialView study →} suggests the mechanism is not simply androgenic. The outcomes are questionnaires, the trials are small and short, and most use one manufacturer’s extract.

A 42-day trial of a standardized fenugreek extract (250 mg twice daily) in 48 perimenopausal women reduced hot flushes, night sweats, insomnia and depression scores. Estradiol and progesterone rose and FSH fell, with no adverse changes in safety measures ^{25Reference 25Khanna et al. · 2020RCTEfficacy of a novel extract of fenugreek seeds in alleviating vasomotor symptoms and depression in perimenopausal women: A randomized, double-blinded, placebo-controlled studyView study →}.

A separate randomized trial compared a 5% fenugreek vaginal cream with low-dose conjugated estrogen cream for atrophic vaginitis in 60 postmenopausal women. The estrogen cream performed significantly better ^{26Reference 26Safary et al. · 2020RCTComparison of the Effects of Fenugreek Vaginal Cream and Ultra Low-Dose Estrogen on Atrophic Vaginitis — randomized controlled clinical trialView study →}.

The proposed driver is phytoestrogenic activity linked to the steroidal saponin diosgenin. The oral evidence rests on one small, single-site trial of an industry-produced extract, with no replication and no long-term endometrial safety data.

A network meta-analysis found fenugreek significantly increased breast-milk volume versus placebo, but it was substantially inferior to comparators such as Coleus amboinicus and palm date ^{21Reference 21Khan et al. · 2018Meta-analysisEffectiveness of fenugreek as a galactagogue: A network meta-analysisView study →}.

A Cochrane review of oral galactagogues rated the certainty of evidence for natural galactagogues as very low and could not pool the milk-volume data ^{22Reference 22Foong et al. · 2020Systematic reviewOral galactagogues (natural therapies or drugs) for increasing breast milk production — systematic reviewView study →}.

Individual trials diverge. A fenugreek-containing herbal tea increased measured milk volume and infant weight regain ^{24Reference 24Turkyılmaz et al. · 2011RCTThe effect of galactagogue herbal tea on breast milk production and short-term catch-up of birth weight — randomized trialView study →}. A 2025 trial in 68 mothers of preterm infants found higher milk volume on day 7, but no significant difference in milk volume or prolactin by day 15 ^{23Reference 23Rouhi et al. · 2025RCTInvestigating the Effectiveness of Fenugreek on the Quantity of Breast Milk and the Level of Prolactin in Mothers of Preterm Newborns: A Randomized Controlled Clinical TrialView study →}.

Gap: Trials are small, use inconsistent preparations (tea, capsule, blend) and short follow-up, and blinding is difficult given fenugreek’s distinctive odour; the effect versus a true placebo is uncertain.

A systematic review and meta-analysis of four studies concluded fenugreek reduces the severity of period pain ^{27Reference 27Hassanzadeh et al. · 2024Meta-analysisThe Effect of Fenugreek on the Severity of Dysmenorrhea: A Systematic Review and Meta-analysisView study →}. In one double-blind RCT, 900 mg of seed powder three times daily for the first three days of menstruation, over two cycles, reduced pain significantly more than placebo ^{28Reference 28Younesy et al. · 2014RCTEffects of fenugreek seed on the severity and systemic symptoms of dysmenorrhea — double-blind randomized placebo-controlled trialView study →}.

The proposed basis is anti-inflammatory and analgesic activity of seed constituents. The pooled result rests on few trials with small samples, short duration and variable quality.

Anti-inflammatory activity has been shown in cells and animals but not tested as a standalone human endpoint. In vitro, steroidal saponin glycosides isolated from seeds suppressed TNF-α in cultured cells ^{29Reference 29Kawabata et al. · 2011In vitroAnti-inflammatory and anti-melanogenic steroidal saponin glycosides from Fenugreek (Trigonella foenum-graecum L.) seeds — in vitro studyView study →}.

In rats, a petroleum-ether seed extract reduced carrageenan- and adjuvant-induced paw oedema and arthritis, an effect attributed to linolenic and linoleic acids ^{30Reference 30Pundarikakshudu et al. · 2016AnimalAnti-inflammatory activity of fenugreek (Trigonella foenum-graecum) seed petroleum ether extract — animal (rat) studyView study →}. A 2025 mouse study reported anti-inflammatory and antioxidant effects with cognitive benefit in an Alzheimer’s model, linked to trigonelline-associated pathways ^{31Reference 31Xiong et al. · 2025AnimalAnti-inflammatory and antioxidant effects of fenugreek in preventing a mouse model of Alzheimer’s disease — animal studyView study →}.

Reported mechanisms centre on NF-κB downregulation and Nrf2 activation. Many of these studies used extracts unlike culinary or clinical fenugreek.

In a randomized crossover study in 18 obese adults, 8 g of isolated fenugreek fibre at breakfast increased ratings of satiety and fullness and reduced hunger. Energy intake at lunch was not significantly lower than on the control day, palatability fell, and blood-glucose response was unchanged ^{6Reference 6Mathern et al. · 2009RCTEffect of fenugreek fiber on satiety, blood glucose and insulin response and energy intake in obese subjects — randomized crossover trialView study →}.

A meta-analysis of lipid trials found no change in body weight or BMI ^{8Reference 8Askarpour et al. · 2020Meta-analysisEffect of fenugreek supplementation on blood lipids and body weight: A systematic review and meta-analysis of randomized controlled trialsView study →}. The metabolic-syndrome meta-analysis found a small reduction in waist circumference ^{4Reference 4Fakhr et al. · 2023Meta-analysisEffects of fenugreek supplementation on the components of metabolic syndrome: A systematic review and dose-response meta-analysis of randomized clinical trialsView study →}.

The satiety signal comes from a single-meal study of isolated fibre, and sustained weight-loss evidence is weak.

A meta-analysis of seven studies found a small effect on total testosterone and small, non-significant changes in lean mass, fat mass and leg-press performance in male athletes ^{11Reference 11Isenmann et al. · 2023Meta-analysisThe Anabolic Effect of Fenugreek: A Systematic Review with Meta-analysisView study →}.

Individual RCTs conflict. A 500 mg standardized extract improved body composition and some strength measures in resistance-trained men ^{19Reference 19Poole et al. · 2010RCTThe effects of a commercially available botanical (fenugreek) supplement on strength, body composition, power output, and hormonal profiles in resistance-trained males — randomized double-blind trialView study →}, and a 300 mg glycoside fraction (Fenu-FG) improved body fat and raised testosterone during an 8-week program ^{18Reference 18Wankhede et al. · 2016RCTBeneficial effects of fenugreek glycoside supplementation in male subjects during resistance training: A randomized controlled pilot studyView study →}. Adding fenugreek 4-hydroxyisoleucine to post-exercise carbohydrate did not improve muscle glycogen resynthesis or subsequent time-trial performance ^{20Reference 20Slivka et al. · 2008RCTGlycogen resynthesis and exercise performance with the addition of fenugreek extract (4-hydroxyisoleucine) to post-exercise carbohydrate feeding — randomized crossover trialView study →}.

Between small samples, different proprietary extracts and at least one null endpoint, no consistent effect on performance has been established.

In rats, fenugreek seed galactomannan and aqueous extract protected against diabetic kidney and liver damage by acting on NF-κB and the Keap1/Nrf2 axis ^{32Reference 32Alsuliam et al. · 2022AnimalFenugreek Seed Galactomannan and Aqueous Extract Protects against Diabetic Nephropathy and Liver Damage by Targeting NF-κB and Keap1/Nrf2 Axis — rat studyView study →}.

Seed extract reduced thioacetamide-induced liver injury and restored antioxidant enzymes ^{33Reference 33Fatima et al. · 2021AnimalFenugreek seeds attenuate thioacetamide-induced liver damage — rat studyView study →}.

A seed mixture containing fenugreek improved markers of non-alcoholic fatty liver in diabetic rats ^{34Reference 34Mohamed et al. · 2015AnimalEffects of fenugreek, Nigella, and termis seeds in nonalcoholic fatty liver in obese diabetic albino rats — animal studyView study →}.

In the only related human report, a woman with breast cancer developed liver injury on ribociclib while also taking a fenugreek supplement. An interaction scale rated the herb–drug interaction as probable ^{41Reference 41Al Harrak et al. · 2025Case reportRibociclib-Induced hepatotoxicity exacerbated by fenugreek supplement use: A case reportView study →}.

Gap: No human efficacy data; the only human liver report is one of harm alongside a prescribed drug.

Digestive effects. The most common side effects in trials are mild digestive complaints ^{2,3Reference 2Kim et al. · 2023Meta-analysisThe Effect of Fenugreek in Type 2 Diabetes and Prediabetes: A Systematic Review and Meta-Analysis of Randomized Controlled TrialsView study →Reference 3Gong et al. · 2016Meta-analysisEffect of fenugreek on hyperglycaemia and hyperlipidemia in diabetes and prediabetes: A meta-analysisView study →}. Urine can take on a maple-syrup smell ^{22Reference 22Foong et al. · 2020Systematic reviewOral galactagogues (natural therapies or drugs) for increasing breast milk production — systematic reviewView study →}.

Newborns. When mothers took fenugreek during labour, their newborns developed a maple-syrup odour, which led to a false suspicion of maple syrup urine disease ^{39Reference 39Korman et al. · 2001Pseudo-maple syrup urine disease due to maternal prenatal ingestion of fenugreekView study →}.

Allergy. Fenugreek can trigger IgE-mediated allergy. In a study of 29 patients with peanut or legume allergy, most had high IgE levels to both peanut and fenugreek, and one reacted to about 2 mg of fenugreek in a food challenge ^{42Reference 42Faeste et al. · 2009Allergenicity and antigenicity of fenugreek (Trigonella foenum-graecum) proteins in foodsView study →}. Two of the main fenugreek allergens closely resemble major peanut allergens ^{43Reference 43Faeste et al. · 2010Characterization of potential allergens in fenugreek (Trigonella foenum-graecum) using patient sera and MS-based proteomic analysisView study →}, and cross-reactions with lupin have been shown in sensitised mice ^{44Reference 44Vinje et al. · 2012AnimalCross-allergic reactions to legumes in lupin and fenugreek-sensitized miceView study →}.

Glucose-lowering drugs. Fenugreek lowers blood glucose ^{1,2,3Reference 1Shabil et al. · 2023Meta-analysisEffect of Fenugreek on Hyperglycemia: A Systematic Review and Meta-AnalysisView study →Reference 2Kim et al. · 2023Meta-analysisThe Effect of Fenugreek in Type 2 Diabetes and Prediabetes: A Systematic Review and Meta-Analysis of Randomized Controlled TrialsView study →Reference 3Gong et al. · 2016Meta-analysisEffect of fenugreek on hyperglycaemia and hyperlipidemia in diabetes and prediabetes: A meta-analysisView study →}, so taking it with antidiabetic drugs or insulin warrants monitoring.

Anticoagulants. A woman on warfarin had a rise in INR while taking boldo and fenugreek products. It fell when she stopped them and rose again when she restarted them ^{40Reference 40Lambert et al. · 2001Case reportPotential interaction between warfarin and boldo-fenugreek — case reportView study →}.

Cancer drugs. A woman with breast cancer developed liver injury on ribociclib while also taking a fenugreek supplement, and an interaction scale rated a herb–drug interaction as probable. The authors suggested an effect on CYP3A4, the enzyme that clears ribociclib, but did not measure it ^{41Reference 41Al Harrak et al. · 2025Case reportRibociclib-Induced hepatotoxicity exacerbated by fenugreek supplement use: A case reportView study →}. High-dose or extract use during chemotherapy is best discussed with the treating team.

Drug metabolism. A week of fenugreek seed powder did not change CYP2D6 or CYP3A4 activity in six healthy volunteers ^{48Reference 48Al-Jenoobi et al. · 2015Effect of Trigonella foenum-graecum L. on metabolic activity of CYP2D6 and CYP3A4View study →}. In rabbits, eight days of seed powder left blood levels of ciclosporin and carbamazepine, two drugs cleared by CYP3A, unchanged ^{49Reference 49Al-Jenoobi et al. · 2014Pharmacokinetic interaction studies of fenugreek with CYP3A substrates cyclosporine and carbamazepine — rabbit studyView study →}.