A seed with real blood-sugar and lactation evidence, and a strong smell. — Trigonella foenum-graecum
remedyFenugreek Trigonella foenum-graecum — hand-drawn plate, stylised. Not for identification — use a field guide and verify with a second source before eating any wild plant.
Fenugreek (Trigonella foenum-graecum) seed is one of the better-evidenced kitchen spices: randomised trials show modest reductions in fasting blood glucose in type 2 diabetes, attributed to its soluble fibre and to a constituent that may slow carbohydrate absorption.
The effect is modest and it is not a diabetes treatment. Diet, weight and exercise change blood sugar far more than fenugreek does, and fenugreek is not a substitute for metformin where metformin is indicated.
It is also the most commonly used galactagogue — a herb to increase milk supply. The trial evidence is mixed and generally weak, and it is worth knowing that most perceived low supply is a latch or frequency problem rather than a supply problem, which is a clinician's and a lactation consultant's assessment rather than a herb's.
Practical points: the seed is bitter and strongly maple-scented, it is used ground or soaked, and it will make sweat and urine smell of maple syrup.
It grows easily as an annual legume and fixes nitrogen, which makes it a useful plant to have.
What the studies found
Meta-Analysis2020Phytotherapy research : PTR
Effect of fenugreek extract supplement on testosterone levels in male: A meta-analysis of clinical trials.
Results from clinical trials suggest that fenugreek extract supplement has an effect on serum total testosterone levels in male.
Among the RCT studies, the best evidence in glycemic control was found in Citrullus colocynthus, Ipomoea betatas, Silybum marianum and Trigonella foenum graecum.
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.
Saliva may be preferred for measuring free testosterone due to no protein-bound testosterone.
Randomized Controlled Trial2024The journal of contemporary dental practice
Effectiveness of Fenugreek as an Adjuvant in the Management of Oral Potentially Malignant Disorders: A Randomized Controlled Trial.
The findings from this trial suggest that SG showed significant improvement in OSMF than CG, whereas the improvements in leukoplakia and lichen planus remained same in both groups.
Randomized Controlled Trial2023The American journal of clinical nutrition
Effectiveness of lactation cookies on human milk production rates: a randomized controlled trial.
This study found no evidence for the effect of consuming LCs on HMPR, PIM, or breastfeeding self-efficacy in exclusively breastfeeding parents with an overall adequate perceived milk supply.
| | |
|---|---|
| Life | Annual legume |
| Propagation | Direct-sow after last frost |
| Light | Full sun |
| Soil | Any reasonable; fixes nitrogen |
| Harvest seed | When pods dry and rattle |
| Dry | Pods in a paper bag |
| Note | A good cover-crop companion |
Direct-sow, harvest the pods when dry, and shake the seed out. It is a legume, so it improves the soil it grows in.
Preparation
Seed, soaked or ground — soak overnight to reduce bitterness; add ground seed to food.
Tea — crushed seed, 5-10 minutes; strong-tasting.
For blood sugar — the trials used 5-10 g daily of seed or extract, alongside diet.
For lactation — capsules or tea; the evidence is mixed, and talk to a lactation consultant first.
Culinary — the safest use; fenugreek leaf (methi) is a good green.
Cautions and interactions
Fenugreek lowers blood sugar — monitor and watch for hypoglycaemia with diabetes medication.
Not a substitute for metformin or for diet and exercise.
Avoid in pregnancy — traditionally treated as a uterine stimulant in medicinal doses.
The lactation evidence is weak. Get a lactation assessment before assuming supply is the problem.
May interact with anticoagulants.
When this is not a self-care problem — get help
A newborn losing weight or not regaining birth weight — urgent paediatric and lactation assessment.
Confusion, sweating or shaking in someone on diabetes medication — possible hypoglycaemia; treat and get assessed.
Known interactions
Additive with blood-sugar-lowering medication; possible antiplatelet effect.
Effect of fenugreek extract supplement on testosterone levels in male: A meta-analysis of clinical trials. Phytotherapy research : PTR 2020; doi:10.1002/ptr.6627 PubMed 32048383
Dietary supplements for dysmenorrhoea. The Cochrane database of systematic reviews 2016; doi:10.1002/14651858.CD002124 PubMed 27000311
Antidiabetic plants of Iran. Acta medica Iranica 2011; PubMed 22071637
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. PloS one 2024; doi:10.1136/jech-2013-202587 PubMed 39288153
Effectiveness of Fenugreek as an Adjuvant in the Management of Oral Potentially Malignant Disorders: A Randomized Controlled Trial. The journal of contemporary dental practice 2024; doi:10.5005/jp-journals-10024-3773 PubMed 39873252
Effectiveness of lactation cookies on human milk production rates: a randomized controlled trial. The American journal of clinical nutrition 2023; doi:10.1016/j.ajcnut.2023.03.010 PubMed 36921902