WiBo Health

Red Yeast Rice (Monacolin K < 3 mg)

Cholesterol & heart health

Function & benefits

Rice fermented with the fungus Monascus purpureus, which produces monacolin K, an inhibitor of HMG-CoA reductase, the enzyme that makes cholesterol in the liver; a placebo-controlled trial and a JACC review suggest it supports normal total and LDL cholesterol levels.

Dosage & how to use

Recommended doseLess than 3 mg of monacolin K daily (the EU legal limit under Regulation (EU) 2022/860)
Best time to takeIn the evening with dinner
FrequencyOnce daily

Best forms to choose

Red yeast rice extract standardised for monacolin K (less than 3 mg per daily portion) and tested free of citrinin.

Important warnings

Mandatory warnings (EU 2022/860): not for pregnant or breastfeeding women, people under 18 or people over 70

Do not use it with any other product containing red yeast rice, or with cholesterol-lowering medication

See a doctor if any health problem occurs, especially unexplained muscle pain or weakness

Drug interactions

Critical warning: never combine it with statins or fibrates. CYP3A4 inhibitors (grapefruit juice, clarithromycin, itraconazole, some HIV drugs) raise the risk of muscle damage.

View in the supplements guide

Related supplements

Scientific references

  1. Commission Regulation (EU) 2022/860 (monacolins from red yeast rice)
  2. Heinz T et al. Nutr Res 2016 — PMID: 27865358
  3. Cicero AFG et al. J Am Coll Cardiol 2021 — PMID: 33538260
📚 Published sources and research: European Food Safety Authority (EFSA) • National Institutes of Health (NIH - ODS) • PubMed / Cochrane databases

Content last updated: 17 October 2026 · Based on published sources and research (EFSA / NIH / PubMed)

⚖️ Medical disclaimer: The information and data provided here are for health education and nutritional guidance only. They are not a medical diagnosis and never replace a direct consultation with your doctor or pharmacist. Always consult your doctor before starting any supplement, especially during pregnancy or breastfeeding or when taking long-term medication.