Fenugreek
Trigonella foenum-graecum
Traditional herb with evidence for supporting testosterone, libido, blood sugar control, and lactation.
Fenugreek is a plant whose seeds have been used in cooking and medicine for centuries. Research shows benefits for testosterone levels, libido in both sexes, blood sugar control, and milk production in nursing mothers. Contains compounds that may inhibit enzymes that convert testosterone to estrogen.
Mechanisms of Action
Aromatase Inhibition
May reduce conversion of testosterone to estrogen
Blood Sugar Regulation
Slows carbohydrate absorption
Recommended Dose
500-600mg extract (standardized)
Optimal Timing
- With meals
Take with food
Best Form
Standardized extract (Testofen, Furosap)
Alternatives: Seed powder, Capsules
Testofen and Furosap are well-studied standardized extracts.
Duration
Minimum: 4 weeks
Optimal: 8 weeks
Cycling: 8 weeks on, 2-4 weeks off is common.
Note: Taking with food may reduce GI upset. For blood sugar, take with carbohydrate-containing meals.
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Increased Libido
Improved sexual desire in men and women
Testosterone Support
Modest increases in free testosterone
Maple Syrup Body Odor
Sweat and urine may smell like maple syrup
Avoid — may induce labor
Traditional galactagogue; may increase milk production
Who Should NOT Take This
- Pregnancy (may stimulate uterine contractions)
- Hormone-sensitive conditions
Drug Interactions
May enhance blood sugar lowering
May have mild anticoagulant effects — may affect platelet aggregation or vitamin K-dependent clotting factors, altering anticoagulant efficacy
Possible Side Effects
Tip: Take with food
Tip: Harmless; reduce dose if bothersome
Tip: Reduce dose
Warnings
- Will make you smell like maple syrup — this is harmless
- Avoid during pregnancy
Top studies from 40+ peer-reviewed papers
Pattanittum P et al. • The Cochrane database of systematic reviews (2016)
“There is no high quality evidence to support the effectiveness of any dietary supplement for dysmenorrhoea, and evidence of safety is lacking.”
Key Findings:
- Supplements versus other supplementsThere was no evidence of a difference in effectiveness between ginger and zinc sulphate (MD 0.02 points, 95% CI -0.58 to 0.62; one RCT, 101 women).
- Vitamin B1 may be more effective than fish oil (MD -1.59 points, 95% CI -2.25 to -0.93; one RCT, 120 women).
- There is no high quality evidence to support the effectiveness of any dietary supplement for dysmenorrhoea, and evidence of safety is lacking.
- However for several supplements there was some low quality evidence of effectiveness and more research is justified.
de Souza LVM et al. • Critical reviews in food science and nutrition (2024)
“The evidence presented in the current systematic review indicates that flour-derived foods intake is related to improve cardiometabolic risk factors parameters.”
Key Findings:
- Chia flour, green banana flour, soy flour, and fenugreek powder showed improvements in blood pressure measurements.
- Brazil nut flour and chia flour reduced total cholesterol.
- Chia flour also increased HDL cholesterol levels.
- The evidence presented in the current systematic review indicates that flour-derived foods intake is related to improve cardiometabolic risk factors parameters.
Shabil M et al. • Medicina (Kaunas, Lithuania) (2023)
“Given the wider availability and lower cost of fenugreek, rigorous double-blinded randomized controlled trials should be conducted with fenugreek to understand its true potential as a diabetes control herbal agent.”
Key Findings:
- The mean difference with 95% confidence intervals (CI) was calculated to represent the analysis.
- The results showed a reduction in fasting blood glucose levels (MD: 3.70, 95% CI of -27.02, 19.62; p = 0.76), postprandial blood glucose (MD: -10.61, 95% CI of -68.48, 47.26; p = 0.72), and HbA1c (MD: -0.88, 95% CI -1.49, -0.27; p = 0.00) with fenugreek consumption.
- Fourteen trials, consisting of 894 participants, were included in the meta-analysis.
- While this review and included trials that found beneficial effects of fenugreek consumption on glycemic control, the quality and heterogeneity of studies remain a concern.
Kumar S et al. • Diabetes & metabolic syndrome (2023)
“Several herbs could be considered as a valuable adjuvant therapy regarding glycemic control of type 2 diabetes patients.”
Key Findings:
- Apple cider vinegar (ACV) (standardized mean difference (SMD) = -28.99), cinnamon (-9.73), curcumin (-13.15), and fenugreek (-19.64) significantly reduced fasting blood glucose (FBG) compared with placebo (all p < 0.05).
- Notably, only ACV (SMD = -2.10) and fenugreek seeds (0.84) were found significantly effective in reducing HbA1C.
- Several herbs could be considered as a valuable adjuvant therapy regarding glycemic control of type 2 diabetes patients.
- Health professionals should be encouraged to incorporate these herbs for the management of type 2 diabetes as part of their standard care.
Correia AGDS et al. • Phytotherapy research : PTR (2023)
“Further high-quality studies should be conducted to establish the clinical efficacy of herbal medicines.© 2023 John Wiley & Sons Ltd.”
Key Findings:
- The mean difference (MD) and the standardized MD (SMD) were adopted, and subgroup analyses were performed according to patient's clinical condition.
- Saffron supplementation reduced FBG (MD: -9.06 mg/dl; 95%CI: -16.25 to -1.86; I2 = 40%; p = 0.12) and HbA1c (MD: -0.19%; 95%CI: -0.23 to -0.14; I2 = 0%; p > 0.99).
- Our results show that using saffron and fenugreek can reduce FBG, PPBG, and HbA1c; however, there are some shortcomings that require attention for these results.
- Further high-quality studies should be conducted to establish the clinical efficacy of herbal medicines.© 2023 John Wiley & Sons Ltd.
Study Type Distribution
Goals This Supplement Supports
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This information is for educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before starting any supplement.