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

Proven Benefits

01Lowers LDL cholesterol

02May lower blood pressure

03May reduce hs-CRP

04May improve fasting glucose

05May improve endothelial function

06May support weight management

Chemical Forms

Recommended

Red yeast rice extract (standardized to monacolin K)

Avoid

Unstandardized raw powders (citrinin risk, variable potency)
Products adulterated with synthetic lovastatin (unlabeled statin)

Expert Note

Standardized extracts deliver consistent monacolin K (3–10 mg/day), matching low-dose lovastatin activity. Unstandardized powders vary widely in potency and may contain citrinin, a nephrotoxic mycotoxin. Some supplements have been found spiked with synthetic lovastatin, which raises toxicity risk without disclosure.

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.

Condition-Based Dosing

LDL 130-190 mg/dL (elevated, no established ASCVD)

1200-2400 mg daily (providing ~6 mg monacolin K), reassess lipids at 8-12 weeks— Equivalent to low-dose statin; monitor for muscle pain and liver enzymes.

Statin-intolerant patients

600-1200 mg daily to start, titrate as tolerated— Start low to assess tolerance; physician oversight strongly recommended.

Confirmed metabolic syndrome

1200-2400 mg daily alongside lifestyle changes— May modestly improve BP and glucose; effects are smaller than for LDL.

Safety & Limits

Upper Safe Limit

No official UL; do not exceed 10 mg/day monacolin K equivalent (~2400 mg extract) without medical supervision

Cycling

Safe for continuous use

Contraindications

Active liver disease or unexplained elevated transaminases — HMG-CoA reductase inhibition can worsen hepatotoxicity

Pregnancy or breastfeeding — statins are contraindicated; insufficient safety data for RYR

Concurrent use of prescription statins — additive risk of rhabdomyolysis

History of statin-induced myopathy or rhabdomyolysis — high recurrence risk

Untreated hypothyroidism — increased risk of myopathy with statin-like agents

Synergies

CoQ10

HMG-CoA reductase inhibition reduces endogenous CoQ10 synthesis; supplementation may mitigate muscle pain risk.

Omega-3

EPA/DHA provides additive triglyceride lowering and cardiovascular protection beyond LDL reduction.

Avoid Combining With

✕Prescription statins — additive myopathy and hepatotoxicity risk
✕Grapefruit juice — inhibits CYP3A4, increasing monacolin K levels and toxicity risk
✕Macrolide antibiotics (e.g., erythromycin) — increased statin-like toxicity via CYP3A4 inhibition
✕Alcohol — additive liver strain

Updated Invalid Date