
Description
"Red Yeast Rice" is a fermented product containing monacolin K, a naturally occurring compound from Monascus purpureus. It supports lipid metabolism by modulating enzymatic pathways involved in cholesterol synthesis and cardiovascular function. In addition, this compound influences circulatory processes, promoting endothelial integrity and vascular resilience. Fermentation-derived metabolites further contribute to metabolic balance and oxidative regulation. Traditionally included in East Asian diets, red yeast rice continues to be a well-known nutritional component for maintaining lipid and heart health.
Functions in the Body
Category
Deficiency Symptoms
Since red yeast rice is not an essential nutrient, no deficiency symptoms are associated with its absence.
Synergists & Antagonists
Red yeast rice is often used with omega-3s, plant sterols, and magnesium to support heart health and cholesterol-lowering effects. CoQ10 is commonly paired with it to support overall muscle function. However, excessive niacin acts as an antagonist by interfering with its cholesterol-lowering properties.

Red Yeast Rice
Warnings
Red yeast rice should be avoided during pregnancy, breastfeeding, or if you have liver conditions. It can interact with medications like cyclosporine (an immunosuppressant), gemfibrozil (a lipid-lowering agent), statins (cholesterol-lowering drugs), and niacin (vitamin B3, used for cholesterol management). These interactions may increase the risk of liver damage or muscle problems, especially when taken alongside other cholesterol-lowering medications.
Food Sources
Red yeast rice is derived from fermented rice and is commonly available as a supplement or added to certain foods.
Time Frame
It is best to take red yeast rice with a meal to enhance absorption and reduce the risk of stomach discomfort.
Depleted By
There are no known factors that specifically deplete red yeast rice from the body.