BioStacks

Red Yeast Rice

Herb
RY

Evidence

Strong
Evidence: 4 of 5 (Strong)
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About Red Yeast Rice

Contains monacolin K, chemically identical to lovastatin. Multiple RCTs and meta-analyses demonstrate significant LDL cholesterol reduction (15–25%). Active compound inhibits HMG-CoA reductase, the same mechanism as prescription statins. Carries statin-class side effects: myopathy risk, liver enzyme elevation, and drug interactions (especially with CYP3A4 inhibitors). Monacolin K content varies widely between products. The EU restricted monacolin K to 3 mg/day in 2022; some products may not comply.

What Red Yeast Rice supports

  • Reduces LDL cholesterol (meta-analysis confirmed)
  • Supports cardiovascular health

How much Red Yeast Rice to take

Clinical studies typically use 1200–2400 mg of Red Yeast Rice. Most RCTs used 1200–2400 mg/day standardized to ~10 mg monacolin K. The EU capped monacolin K at 3 mg/day in 2022 due to statin-like safety concerns.

Effective range
1200–2400 mg

Clinical evidence

Strong clinical evidence. Multiple RCTs and meta-analyses confirm 15–25% LDL reduction; contains monacolin K (identical to lovastatin)

Examine.com