Fenugreek
A traditional-medicine seed, taken above all for testosterone and blood sugar.
- Testosterone and libido
- Blood sugar
- Breast milk supply
- Cholesterol and blood pressure
- Menopause symptoms
A plain-English overview, not advice. Written from published reviews and trials and from what people say in public forums.
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On this page
What is fenugreek?
Fenugreek is the seed of Trigonella foenum-graecum, a short-lived annual plant in the pea family that grows to about sixty centimetres, with golden-yellow, angular seeds. It has a long history as a food, spice and traditional medicine in many parts of the world, including a place in both Ayurveda and traditional Chinese medicine. It is sold as milled seed powder, as seed extracts standardised to their content of steroidal compounds called saponins, and as specific extracts developed and studied for particular uses. Modern research on fenugreek spans an unusually wide range of reasons, from the gym to the maternity ward.
Why do people take fenugreek?
Testosterone and libido
The thinking. Testosterone and libido is the reason with the biggest following in gyms and among older men, and specific standardised extracts have been developed and studied for it. The idea rests on compounds called saponins, thought to influence how the body regulates its own hormone production.
What research has found. Reviews and trials mostly measured total testosterone in men; a 2026 review pooling six trials found a small favourable difference, though a parallel pooling of free testosterone found no stable benefit. Trials measuring wider symptoms, such as ageing male symptom scores and sexual function, mostly found improvements against placebo, and a trial using a related extract in women found similar gains in testosterone and sexual desire. Studies here point in different directions, so this one is still being worked out; the dose, how long people took it and who took part all seem to matter.
Blood sugar
The thinking. Blood sugar is fenugreek’s oldest, most traditional reputation, going back to its long use in Ayurvedic medicine for diabetes. The idea is that compounds in the seed, including its soluble fibre and an unusual amino acid, slow how quickly sugar is absorbed after a meal.
What research has found. Reviews pooling ten to twenty-nine trials mostly found lower fasting blood sugar, post-meal blood sugar and HbA1c compared with placebo, mostly in people with type 2 diabetes, though the size of the benefit varied a great deal between reviews. Several trials tested fenugreek alongside standard diabetes medication rather than in place of it, and found a bigger drop in blood sugar than the medication produced alone. The studies disagree, so this is unsettled: dose, duration and who took part all seem to shift the result.
Breast milk supply
The thinking. Breast milk supply is a well-known reason breastfeeding women reach for fenugreek, used this way in various cultures for generations. The idea is that it acts as a galactagogue: a substance taken in the hope of increasing the amount of milk a woman produces.
What research has found. One review pooling five trials in 122 breastfeeding women found a significant increase in the amount of milk produced compared with placebo, though the same review found other traditional galactagogues worked better still. Research here is still young: a few studies so far, mostly pointing the same way.
Cholesterol and blood pressure
The thinking. Cholesterol and blood pressure are measured in many of the same trials that test fenugreek for blood sugar, since the two are often studied together in diabetes and wider metabolic health. The thinking is that the same fibre and saponins thought to slow sugar absorption also change how the gut handles fat and cholesterol.
What research has found. Several reviews pooling six to fifteen trials found lower total cholesterol, LDL and triglycerides and higher HDL compared with placebo, with one review reporting a bigger effect in people with diabetes than in people without. A dedicated review of six trials found a small reduction in systolic blood pressure but no clear change in diastolic blood pressure. A fair body of trials has looked at this, and most point the same way.
Menopause symptoms
The thinking. Menopause symptoms are a newer reason women have taken up fenugreek for, using standardised extracts developed and studied specifically for hot flushes, night sweats and mood during the menopause transition. The idea is that compounds in the seed act on the same hormonal pathways involved in that transition, without being hormones themselves.
What research has found. Three placebo-controlled trials of different standardised extracts, each in fewer than 120 women, found improvements in menopause symptom scores and hot flushes compared with placebo; two also found a rise in oestrogen, while a third found oestrogen levels similar between groups. Only a few studies have measured this so far, though they mostly agree.
What does fenugreek do in the body?
Fenugreek seeds contain a mix of compounds rather than a single nutrient the body runs short of. Reviews point to several groups in particular: steroidal saponins, a soluble fibre called galactomannan, flavonoids, and an unusual amino acid called 4-hydroxyisoleucine that is found in very few other plants.
Reviews describe fenugreek’s studied effects, from blood sugar to hormones, as coming from this whole mixture of compounds acting together rather than any single one, and several note that not all of the plant’s active compounds have been identified yet. Preparations also vary widely from study to study, from whole seed powder to concentrated extracts standardised to a stated compound, which reviews say makes the research harder to compare and combine.
What do people say about taking fenugreek?
These are anecdotes people have shared, not evidence.
What people like
- Many breastfeeding posters described a noticeable increase in milk supply within days of starting, especially alongside frequent feeding or pumping.
- Several described fuller breasts and a stronger let-down once supply picked up, with more milk visible between feeds.
- A few people managing blood sugar said fenugreek worked well as part of a wider routine of diet, exercise and self-monitoring.
- Some said the effect came on quickly, within a couple of weeks, and a couple noticed supply stayed up for a while after stopping.
Common complaints
- Very commonly mentioned across breastfeeding threads: a strong maple-syrup or curry-like smell in sweat and body odour, sometimes lasting for weeks.
- Several breastfeeding posters found it made no noticeable difference to their supply at all, even after taking it for weeks.
- A few felt it seemed to lower rather than raise their supply, and others found any benefit faded once they stopped taking it.
- Some people managing blood sugar reported stomach upset, headaches or blurred vision after taking capsules, alongside the usual smell.
- A couple mentioned an odd aftertaste from capsules, and one described the smell as strong enough to be embarrassing at times.
How people take it
- Breastfeeding posters most often took ready-made capsules rather than preparing seeds themselves, usually several times a day.
- Typical amounts mentioned were two to three capsules taken up to three times a day, sometimes cut back once supply improved.
- People managing blood sugar described eating or soaking seeds as well as taking capsules, with soaking suggested to make it more effective.
- A few combined fenugreek with other approaches at the same time, such as more frequent feeding, breast massage or other herbal remedies.
Read from these public discussions:
- Does fenugreek help with milk supply? (Mumsnet, 2011)
- Did fenugreek increase your supply? (Mumsnet, 2017)
- Does Fenugreek work and what are the implications if you use it? (Mumsnet, 2012)
- Fenugreek (methi) Seed (Diabetes.co.uk Forum, 2018)
- Has anyone had side effects from Fenugreek (Diabetes.co.uk Forum, 2013)
What forms of fenugreek are there?
| Form | What’s different | Per serving, on products we list |
|---|---|---|
| Fenugreek seed extract | An unstandardised seed extract or powder; the concentration varies from label to label. | 1.12 g |
| Testofen | A patented seed extract studied specifically for testosterone and ageing male symptoms. | not in our price tables yet |
What else is worth knowing about fenugreek?
- Several trials studied fenugreek alongside standard diabetes medication rather than instead of it, and found a bigger drop in blood sugar than the medication produced on its own, which is worth knowing for anyone already taking medication for diabetes.
- One review of animal research found fenugreek’s saponins affected implantation and pregnancy in females, and on that basis advises against fenugreek for anyone who is pregnant.
- The same review advises that fenugreek should be avoided by people with a peanut or chickpea allergy, because of possible cross-reactivity, and by people with chronic asthma.
- Labels give the amount of extract or seed powder per serving. Trials used doses from around 500 mg of a concentrated extract up to 25 g or more of seed powder a day, so amounts vary very widely between products, and the most commonly reported side effect across trials was mild gastrointestinal discomfort.
If you take medication, are pregnant, or have a health condition, check with a pharmacist or GP first.
The research behind this page (36 studies)
- Effects of oral fenugreek-derived preparations on testosterone-related outcomes in adult men: a systematic review and meta-analysis of randomized placebo-controlled trials. (2026, systematic review)
- The Anabolic Effect of Fenugreek: A Systematic Review with Meta-analysis. (2023, meta-analysis)
- Effect of fenugreek extract supplement on testosterone levels in male: A meta-analysis of clinical trials. (2020, meta-analysis)
- Effect of a plant extract of fenugreek (Trigonella foenum-graecum) on testosterone in blood plasma and saliva in a double blind randomized controlled intervention study. (2024, randomised trial)
- The effect of Trigonella foenum-graecum extract on prostate-specific antigen, and prostate function in otherwise healthy men with benign prostate hyperplasia. (2020, randomised trial)
- Efficacy of fenugreek seed extract on men's psychological and physical health: a randomized placebo-controlled double-blind clinical trial. (2020, randomised trial)
- Testofen, a specialised Trigonella foenum-graecum seed extract reduces age-related symptoms of androgen decrease, increases testosterone levels and improves sexual function in healthy aging males in a double-blind randomised clinical study. (2016, randomised trial)
- Influence of a Specialized Trigonella foenum-graecum Seed Extract (Libifem), on Testosterone, Estradiol and Sexual Function in Healthy Menstruating Women, a Randomised Placebo Controlled Study. (2015, randomised trial)
- Fenugreek Is Superior to Guar Gum, Locust Bean Gum and Tara Gum for Metabolic Health: A Systematic Review. (2026, systematic review)
- Effects of fenugreek supplementation on the components of metabolic syndrome: A systematic review and dose-response meta-analysis of randomized clinical trials. (2023, meta-analysis)
- Effect of Fenugreek on Hyperglycemia: A Systematic Review and Meta-Analysis. (2023, meta-analysis)
- Effect of saffron and fenugreek on lowering blood glucose: A systematic review with meta-analysis. (2023, meta-analysis)
- The Effect of Fenugreek in Type 2 Diabetes and Prediabetes: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. (2023, meta-analysis)
- The Effects of Fenugreek on Cardiometabolic Risk Factors in Adults: A Systematic Review and Meta-analysis. (2020, meta-analysis)
- Effect of fenugreek on hyperglycaemia and hyperlipidemia in diabetes and prediabetes: A meta-analysis. (2016, meta-analysis)
- Effect of fenugreek (Trigonella foenum-graecum L.) intake on glycemia: a meta-analysis of clinical trials. (2014, meta-analysis)
- A Placebo-Controlled, Double-Blind Clinical Investigation to Evaluate the Efficacy of a Patented Trigonella foenum-graecum Seed Extract "Fenfuro®" in Type 2 Diabetics. (2024, randomised trial)
- The effect of fenugreek seed supplementation on serum irisin levels, blood pressure, and liver and kidney function in patients with type 2 diabetes mellitus: A parallel randomized clinical trial. (2020, randomised trial)
- A randomized controlled clinical trial evaluating the effect of Trigonella foenum-graecum (fenugreek) versus glibenclamide in patients with diabetes. (2019, randomised trial)
- Insulin-Sensitizer Effects of Fenugreek Seeds in Parallel with Changes in Plasma MCH Levels in Healthy Volunteers. (2018, randomised trial)
- Reduction of postprandial blood glucose in healthy subjects by buns and flatbreads incorporated with fenugreek seed powder. (2016, randomised trial)
- Effect of Fenugreek Seeds on Serum Metabolic Factors and Adiponectin Levels in Type 2 Diabetic Patients. (2014, randomised trial)
- Effectiveness of fenugreek as a galactagogue: A network meta-analysis. (2018, systematic review)
- The Effects of Fenugreek Seed Consumption on Blood Pressure: A Systematic Review and Meta-analysis of Randomized Controlled Trials. (2023, meta-analysis)
- Effect of fenugreek supplementation on blood lipids and body weight: A systematic review and meta-analysis of randomized controlled trials. (2020, meta-analysis)
- Effect of fenugreek consumption on serum lipid profile: A systematic review and meta-analysis. (2020, meta-analysis)
- Antidiabetic Effect of Fenugreek Seed Powder Solution ( Trigonella foenum-graecum L .) on Hyperlipidemia in Diabetic Patients. (2019, randomised trial)
- Efficacy of a novel extract of fenugreek seeds in alleviating vasomotor symptoms and depression in perimenopausal women: A randomized, double-blinded, placebo-controlled study. (2020, randomised trial)
- Efficacy of a Proprietary Trigonella foenum-graecum L. De-Husked Seed Extract in Reducing Menopausal Symptoms in Otherwise Healthy Women: A Double-Blind, Randomized, Placebo-Controlled Study. (2017, randomised trial)
- A Novel Extract of Fenugreek Husk (FenuSMART™) Alleviates Postmenopausal Symptoms and Helps to Establish the Hormonal Balance: A Randomized, Double-Blind, Placebo-Controlled Study. (2016, randomised trial)
- A small plant with big benefits: Fenugreek (Trigonella foenum-graecum Linn.) for disease prevention and health promotion. (2017, review)
- Revisiting Trigonella foenum-graecum L.: Pharmacology and Therapeutic Potentialities. (2022, review)
- Pharmacological effects of Trigonella foenum-graecum L. in health and disease. (2014, review)
- The multifaceted potential of fenugreek seeds: From health benefits to food and nanotechnology applications. (2024, review)
- Current perspectives on fenugreek bioactive compounds and their potential impact on human health: A review of recent insights into functional foods and other high value applications. (2024, review)
- Toxicological properties of fenugreek (Trigonella foenum graecum). (2016, review)
How much does fenugreek cost?
That depends on the form and the pack, so we work out the price of the same dose of every fenugreek product we can find and rank them.