Studies show that red yeast rice can lower blood lipid levels, including cholesterol and triglycerides. Red yeast rice is made from rice that has been fermented by the red yeast Monascus purpureus. Studies show that red yeast rice can lower blood lipid levels, including cholesterol and triglycerides. Red yeast rice has long been used in Chinese medicine and is now a staple ingredient in diets within China , Japan and parts of the US . Study findings also suggest that it may help to improve blood circulation and reduce indigestion.