Red Yeast Rice Powder

Red yeast rice is produced by fermenting a specific strain of rice (Monascus purpureus) with yeast. This fermentation process creates compounds called monacolins, including monacolin K, which is chemically identical to the active ingredient in the prescription drug lovastatin. It has been used for centuries in traditional Chinese cuisine and medicine.

In the US, red yeast rice is primarily used as a dietary supplement, often marketed for its potential to support heart health by managing cholesterol levels. Manufacturers may also use it as a natural food coloring agent in some products, though this is less common in the US compared to its supplement use. It is found in some meat products and meat alternatives.

Red yeast rice is regulated as a dietary supplement by the FDA. Concerns have been raised about its use due to the presence of monacolin K, which can have drug-like effects and potential side effects, including muscle pain and liver issues, similar to statin medications. The FDA has stated that products containing certain levels of monacolin K may be considered unapproved drugs. JECFA and EFSA have evaluated red yeast rice and its components.