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Head-to-head evidence comparison — which supplement is right for you?
Red Yeast Rice wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
12 of 13 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
15 of 16 studies with measurable effects showed benefit.
Top outcomes
1g three times daily before meals (3g total)
30-60 minutes before meals, With 1-2 glasses of water, Before largest meals for weight loss
Capsules (safest)
1200-2400mg providing 10mg monacolin K
Evening (cholesterol synthesis peaks at night)
Standardized extract with verified monacolin K content
30-60 minutes
4-8 weeks
4-8 weeks
If improperly taken
8-12 weeks
8-12 weeks
Effect of glucomannan on plasma lipid and glucose concentrations, body weight, and blood pressure: systematic review and meta-analysis
The American journal of clinical nutrition (2008) · Meta analysis · n=531
Glucomannan appears to beneficially affect total cholesterol, LDL cholesterol, triglycerides, body weight, and FBG, but not HDL cholesterol or BP.
The Impact of Glucomannan, Inulin, and Psyllium Supplementation (Soloways(TM)) on Weight Loss in Adults with FTO, LEP, LEPR, and MC4R Polymorphisms: A Randomized, Double-Blind, Placebo-Controlled Trial
Nutrients (2024) · Rct · n=112
The experimental group showed significant reductions in body weight (treatment difference: -4.9%; 95% CI: -6.9% to -2.9%; p < 0.01) and BMI (treatment difference: -1.4 kg/m2; 95% CI: -1.7 to -1.2; p < 0.01) compared to placebo.
Comparative effects of nutraceuticals on body weight in adults with overweight or obesity: A systematic review and network meta-analysis of 111 randomized clinical trials
Pharmacological research (2023) · Meta analysis · n=6171
We conducted random-effects network meta-analysis with a Frequentist framework to estimate mean difference [MD] and 95% confidence interval [CI] of the effect of nutraceuticals on weight loss.
Efficacy and Safety of Armolipid Plus(®): An Updated PRISMA Compliant Systematic Review and Meta-Analysis of Randomized Controlled Clinical Trials
Nutrients (2021) · Meta analysis · n=1050
Armolipid Plus® was well tolerated.
Safety and Efficacy of the Consumption of the Nutraceutical "Red Yeast Rice Extract" for the Reduction of Hypercholesterolemia in Humans: A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis
The consumption of RYR extract by people with hypercholesterolemia was associated with statistically significant reduction in total cholesterol and LDL-C, whereas it was not associated with an increase in life-threatening side effects.
Impact of Berberine or Berberine Combination Products on Lipoprotein, Triglyceride and Biological Safety Marker Concentrations in Patients with Hyperlipidemia: A Systematic Review and Meta-Analysis
Journal of dietary supplements (2024) · Meta analysis · n=4838
Products with berberine alone had less robust effects on TC (MD -12.08 mg/dL [95%CI: -21.79 to -2.37]), LDL (MD -9.26 mg/dL [95%CI: -20.31 to 1.78]), and HDL (MD 1.38 mg/dL [95%CI: -1.27 to 4.03]) but TG effects were similar (MD -17.40 mg/dL [95%CI: -32.57 to -2.23]).
Meta-analysis of 6 RCTs (n=225) showed modest but significant weight reduction vs placebo. Effects appear greater in females. Limited long-term data available.
Based on RCT showing 16.77% reduction with 3mg and 26.46% reduction with 10mg monacolin K. Conservative effectiveness scaling due to limited dose-response data and variable study quality noted in meta-analyses.
AI-estimated from published studies. Interpret as directional guidance.
Red Yeast Rice has a higher evidence score (7.8/10 vs 6.5/10) and wins in 2 of 3 categories.
For reduce inflammation, Red Yeast Rice has a higher relevance score (90 vs 65).
No known interactions between Glucomannan and Red Yeast Rice have been documented in our database. However, always consult a healthcare provider before combining supplements.