Loading…
We use essential cookies (authentication, your saved goals/stack) by default. With your permission we'll also enable privacy-respecting analytics (Vercel Web Analytics, anonymous load-time metrics) and error-replay diagnostics (Sentry — DOM snapshots only when an error fires) so we can fix bugs faster. Learn more about cookies
Head-to-head evidence comparison — which supplement is right for you?
Caffeine and Fenugreek are closely matched across evidence, studies, and safety.
Verdict
Likely helps
29 of 35 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
13 of 14 studies with measurable effects showed benefit.
Top outcomes
100-200mg
Morning, 30-60 minutes before exercise
Pill/capsule for precise dosing
500-600mg extract (standardized)
With meals
Standardized extract (Testofen, Furosap)
15-45 minutes
30-60 minutes
30-60 minutes
30-60 minutes
4-8 weeks
8-12 weeks
Within days
Effect of Acute Caffeine Intake on the Fat Oxidation Rate during Exercise: A Systematic Review and Meta-Analysis
Nutrients (2020) · Meta analysis · n=2020
A subsequent meta-analysis was performed using the random effects model to calculate the standardized mean difference (SMD).
The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials
Critical reviews in food science and nutrition (2019) · Meta analysis · n=606
Thirteen RCTs with 606 participants were included in the meta-analyses.
Effect of Caffeine and Nitrates Combination on Exercise Performance, Heart Rate and Oxygen Uptake: A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis · n=95
The meta-analysis revealed that caffeine and nitrates supplementation (CAF+nitrates) did not enhance performance in time trials (TTs) over the CAF alone (g = -0.06; 95% CI = -0.46 to 0.35; p = 0.78) or nitrates alone (g = 0.29; 95% CI = -0.12 to 0.70; p = 0.17).
Dietary supplements for dysmenorrhoea
The Cochrane database of systematic reviews (2016) · Meta analysis · n=3101
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).
The effect of flour-based foods intake in the reduction of cardiometabolic risk: A systematic review
Critical reviews in food science and nutrition (2024) · Systematic review
Chia flour, green banana flour, soy flour, and fenugreek powder showed improvements in blood pressure measurements.
Effect of Fenugreek on Hyperglycemia: A Systematic Review and Meta-Analysis
Medicina (Kaunas, Lithuania) (2023) · Meta analysis · n=894
The mean difference with 95% confidence intervals (CI) was calculated to represent the analysis.
Based on multiple meta-analyses showing 3-6mg/kg optimal dosing. Performance benefits plateau around 200-300mg with increased jitteriness at higher doses.
Multiple meta-analyses show modest but consistent reductions in fasting blood glucose. Effects appear stronger in diabetic populations. Conservative estimates given heterogeneity in study designs and extract standardization.
AI-estimated from published studies. Interpret as directional guidance.
Both Caffeine and Fenugreek are closely matched — the best choice depends on your specific health goals.
For boost daily energy, Caffeine has a higher relevance score (98 vs 48).
No known interactions between Caffeine and Fenugreek have been documented in our database. However, always consult a healthcare provider before combining supplements.