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Head-to-head evidence comparison — which supplement is right for you?
Grape Seed Extract vs Red Yeast Rice: Red Yeast Rice has the stronger overall evidence (7.8 vs 6/10); they're alternatives for support heart health — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Red Yeast Rice wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Too few graded studies
1 of 1 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
7 of 7 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Grape Seed Extract and Red Yeast Rice have evidence — compare verdict strength side-by-side.
100-300mg (standardized to 95% OPCs)
With meals
Standardized extract (95% OPCs or proanthocyanidins)
1200-2400mg providing 10mg monacolin K
Evening (cholesterol synthesis peaks at night)
Standardized extract with verified monacolin K content
and 4 more not shown
4-8 weeks
8-12 weeks
8-12 weeks
8-12 weeks
8-12 weeks
Phlebotonics for venous insufficiency
The Cochrane database of systematic reviews (2020) · Meta analysis · n=7690
Pooled data suggest that phlebotonics probably increase adverse events slightly, compared to placebo (RR 1.14, 95% CI 1.02 to 1.27; 37 studies; 5789 participants; moderate-certainty evidence).
Does the Grape Products Intake has an Effect on Body Weight in Adults: A Systematic Review and Meta-analysis of Randomized Controlled Trials
Current drug targets (2024) · Meta analysis · n=1284
The outcomes have revealed grape products intake to significantly decrease body weight (p = 0.001) and body mass index (p = 0.004) in obese participants, and also, a greater effect was observed when grape seed extract was used.
Low Dose Monacolin K Combined with Coenzyme Q10, Grape Seed, and Olive Leaf Extracts Lowers LDL Cholesterol in Patients with Mild Dyslipidemia: A Multicenter, Randomized Controlled Trial
Nutrients (2023) · Rct · n=105
LDL-C decreased by 26.46% on average (p < 0.001) during treatment with 10 mg of monacolin and by 16.77% on average during treatment with 3 mg of monacolin (p < 0.001).
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
Meta-analysis of 41 randomized trials (4,838 patients) of berberine products, alone or combined with other nutraceuticals such as red yeast rice, for 8-18 weeks.
Both points come from one 8-week randomised trial in 105 people with mild high cholesterol (PMID 37375586): LDL fell by 16.77% on 3 mg of monacolin K and by 26.46% on 10 mg, on top of lifestyle change, and effectiveness is that percentage fall. The product also contained CoQ10, grape seed and olive leaf extracts, and no severe adverse events occurred. A separate 8-week trial of 200 mg red yeast rice with 2 mg monacolin K in 18 people lowered LDL more than diet alone (PMID 34587702). The 6 mg point was removed because no cited trial tested it, and no cited trial tested more than 10 mg.
AI-estimated from published studies. Interpret as directional guidance.
Red Yeast Rice has a higher evidence score (7.8/10 vs 6/10) and wins in 2 of 3 categories.
For support heart health, Red Yeast Rice has a higher relevance score (90 vs 62).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.