Browse/Herb & Botanical
Herb & Botanical

Trigonella Foenum-graecum Extract

01 / OVERVIEW

What this compound does

WHAT IT DOES

Fenugreek is a plant whose seeds and leaves have been used as a spice and medicine for centuries. It contains compounds that help your body manage blood sugar levels by making your cells more responsive to insulin and slowing down how fast you digest carbohydrates. Some people use fenugreek to support milk production while breastfeeding, and there is some evidence it may help boost testosterone in men. It can also help lower cholesterol and reduce appetite, which might aid weight management. The effects are modest and depend on the dose and form you take.

KEY BENEFITS
Supports healthy blood sugar levels after meals
May increase milk supply in breastfeeding mothers
Could help improve low testosterone in some men
Helps lower total and LDL cholesterol
May reduce appetite and support weight loss
BEST FOR
  • • People with type 2 diabetes or prediabetes looking for mild blood sugar support
  • • Breastfeeding mothers wanting to boost milk production
  • • Men with mildly low testosterone levels
  • • Those seeking to lower cholesterol naturally
WHAT TO EXPECT

Some people notice improved blood sugar within a few days to weeks, especially after meals. Testosterone changes may take 1-3 months. Milk supply increase can be seen within 24-72 hours, but it varies. Fenugreek has a distinct maple-like smell that may be noticed in sweat and urine.

WHO SHOULD AVOID THIS
  • • Pregnant women (may stimulate uterine contractions)
  • • People with hormone-sensitive cancers (e.g., breast, ovarian, uterine)
  • • Those allergic to peanuts or chickpeas (same plant family)
  • • People with bleeding disorders or scheduled for surgery
  • • Children (safety not established)
MYTHS & FACTS
Myth: Fenugreek works instantly to lower blood sugar.
Fact: It takes weeks of consistent use to see modest effects. It is not a replacement for diabetes medication.
Myth: Fenugreek will dramatically boost testosterone in all men.
Fact: Studies show small increases (10-20%) in men with initially low levels, but not enough for clinical hypogonadism.
Myth: Fenugreek can be used to induce abortion.
Fact: While it may stimulate uterine contractions, there is no reliable evidence it safely induces abortion, and it is dangerous in high doses during pregnancy.
At a glance
Typical dose
500-600
Evidence
—
Studies indexed7
How it's made

Production details below.

03 / DOSAGE

How much, when

MAINTENANCE

500-600

Standardized to 50% saponins or 20% protodioscin; take with meals to minimize GI effects

TIMING

Trigonella Foenum-graecum Extract — Any dose

Take with food

02 / EVIDENCE

Peer-reviewed studies

  • PMID: 12145089

    Improves postprandial glucose

    Fenugreek seed powder (5-50 g/day) reduced postprandial blood glucose by 20-30% in type 2 diabetics over 8 weeks (n=25, RCT).

    B
  • PMID: 20451364

    Increases milk production

    Fenugreek (6 g/day for 2 weeks) increased milk volume by 45% in lactating mothers (n=66, RCT).

    B
  • PMID: 20656443

    Boosts testosterone in men

    Fenugreek extract (500 mg/day for 8 weeks) increased free testosterone by 20% and improved libido in healthy men (n=60, RCT).

    B
  • Meta-analysis

    Lowers LDL cholesterol

    Meta-analysis of 15 RCTs found fenugreek reduced LDL by 0.82 mmol/L (95% CI -1.14 to -0.50) over 8-12 weeks.

    A
  • PMID: 19389685

    Reduces appetite and calorie intake

    Fenugreek (8 g/day) reduced spontaneous calorie intake by 12% over 2 weeks compared to placebo (n=36, RCT).

    B
  • PMID: 10548029

    Suppresses postprandial insulin spike

    4-Hydroxyisoleucine (2 g) given with a meal reduced insulin area under curve by 23% in healthy adults (n=18, crossover RCT).

    B
  • PMID: 23256795

    Improves dysmenorrhea

    Fenugreek seed powder (900 mg twice daily for 3 days from start of menses) reduced menstrual pain severity by 40% (n=36, RCT).

    B
  • PMID 17309390 · 2007Narrative Review

    Algorithm for complementary and alternative medicine practice and research in type 2 diabetes

    B
  • PMID 32147060 · 2020RCT

    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

    B
  • PMID 36199177 · 2023RCT

    The effects of fenugreek seed extract supplementation in patients with Alzheimer's disease: A randomized, double-blind, placebo-controlled trial

    B
  • PMID 28581555 · 2017Mechanistic Study

    Investigation of mechanisms involved in postprandial glycemia and insulinemia attenuation with dietary fibre consumption

    B
  • PMID 32087319 · 2020Meta-Analysis

    Effect of fenugreek supplementation on blood lipids and body weight: A systematic review and meta-analysis of randomized controlled trials

    B
04 / INTERACTIONS

Medicine interactions

  • Insulin· antidiabetic

    Fenugreek increases insulin sensitivity and secretion.

    → Monitor glucose; reduce insulin dose under medical supervision.

    HIGH

  • Warfarin· blood_thinner

    Fenugreek may have coumarin-like anticoagulant effects.

    → Monitor INR closely; avoid concurrent use unless supervised.

    HIGH

  • Metformin· antidiabetic

    Additive blood sugar-lowering effect.

    → Monitor glucose; may need metformin dose adjustment.

    MODERATE

  • Thyroid medications (e.g., levothyroxine)· thyroid_med

    Fenugreek may interfere with thyroid hormone absorption.

    → Take fenugreek 2-3 hours apart from thyroid medications.

    MODERATE

  • MAOIs (e.g., phenelzine)· antidepressant

    Fenugreek seeds contain tyramine; may cause hypertensive crisis with MAOIs.

    → Avoid fenugreek if taking MAOIs.

    MODERATE

  • Oral contraceptives· hormonal_contraceptive

    Phytoestrogens may theoretically affect estrogen metabolism.

    → Consider that high doses could reduce contraceptive efficacy; no strong evidence.

    LOW

This page is a reference summary, not a prescription. Consult a clinician before starting, stopping, or combining supplements — especially if you take medication or have a medical condition.