Heart/Inflammation/Weight

Red yeast rice

Fermented rice containing monacolin K (a natural statin) that lowers LDL cholesterol in adults with elevated lipids who prefer a non-pharmaceutical approach.

Red yeast rice

Fermented rice containing monacolin K (a natural statin) that lowers LDL cholesterol in adults with elevated lipids who prefer a non-pharmaceutical approach.

score

evidence

Caution

risk

Overview

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Safety

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Quick Take

Effective for LDL lowering but behaves like a low-dose statin — same risks, variable potency, and possible contaminants. Use with caution.

Red yeast rice is rice fermented with the yeast Monascus purpureus, a traditional food and medicine in East Asia. It naturally contains monacolin K, which is chemically identical to the prescription statin lovastatin, along with plant sterols and isoflavones. Clinical meta-analyses show it can significantly reduce LDL cholesterol and, to a lesser extent, total cholesterol and blood pressure in adults with hyperlipidemia or metabolic syndrome. It may also modestly lower inflammatory markers and fasting glucose. Those most likely to benefit are adults with elevated LDL who are statin-intolerant

Proven Benefits

Lowers LDL cholesterol

May lower blood pressure

May reduce hs-CRP

May improve fasting glucose

May improve endothelial function

May support weight management

Protocol

Amount

1200-2400 mg

Frequency

Twice daily, with meals

When

With the evening meal and one other meal — cholesterol synthesis peaks overnight and HMG-CoA reductase inhibitors are traditionally dosed in the evening.

Onset Time

4-8 weeks for LDL reduction; 8-12 weeks for blood pressure or metabolic effects.

Who Should Consider

Adults with LDL > 130 mg/dL

Statin-intolerant patients (under physician care)

People with metabolic syndrome

Adults seeking non-pharmaceutical lipid management

How It Works

Monacolin K inhibits HMG-CoA reductase, the rate-limiting enzyme in hepatic cholesterol synthesis, reducing LDL production. Additional compounds like monascin and ankaflavin may contribute to anti-inflammatory and metabolic effects, though monacolin K is considered the primary active agent.

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