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Head-to-head evidence comparison — which supplement is right for you?
Nattokinase 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
Mostly mechanism / observational
0 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 (2)
Outcomes where both Nattokinase and Red Yeast Rice have evidence — compare verdict strength side-by-side.
2000-4000 FU (fibrinolytic units)
No particular time of day or relation to meals is established
Capsules standardized to FU
1200-2400mg providing 10mg monacolin K
Evening (cholesterol synthesis peaks at night)
Standardized extract with verified monacolin K content
and 4 more not shown
2-8 weeks
4-8 weeks
8-12 weeks
8-12 weeks
Research Progress of Nattokinase in Reducing Blood Lipid
Nutrients (2025) · Review
Narrative review of nattokinase and blood lipids, covering its proposed mechanisms (HSL activation, HMG-CoA reductase inhibition, lipoprotein lipase), clinical studies and safety.
Navigating the Effects of Anti-Atherosclerotic Supplements and Acknowledging Associated Bleeding Risks
International journal of molecular sciences (2025) · Review
Omega-3 fatty acids, berberine, garlic, and nattokinase exert favorable metabolic and vascular effects, yet their clinical efficacy depends on formulation, dosage, and patient characteristics and may be limited by bleeding risk or drug interactions.
Fermented Fruits, Vegetables, and Legumes in Metabolic Syndrome: From Traditional Use to Functional Foods and Medical Applications
Nutrients (2025) · Review
Fermented fruits and vegetables, including table olives, caper fruits, and kimchi, contain polyphenols and probiotic bacteria, which are beneficial in terms of obesity and impaired glucose and lipid metabolism.
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.
No trial of nattokinase alone found a lipid effect at either dose tested. In a 3-year double-blind RCT in 265 adults (PMID 33843667), 2,000 FU a day had no effect on any laboratory measure, lipids included, or on carotid atherosclerosis. In a 2-month open-label study in 45 adults (PMID 19358933), 4,000 FU a day (2 capsules of 2,000 FU) left blood lipids unaffected. The lipid benefits in the nattokinase-monascus (PMID 37836525) and red yeast rice combination trials (PMID 38812930) cannot be credited to nattokinase alone, and their abstracts give no nattokinase dose.
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 88).
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.