Red yeast is a rice malt made by mixing red koji mold (monascus mold) with steamed rice and fermenting it. It contains functional ingredients that have been proven to be highly effective, such as GABA (γ-aminobutyric acid) and monacolin K. Monacolin K is known to suppress cholesterol, and GABA is known to lower blood pressure and have a refreshing effect. The red pigment component also has antioxidant effects and has the potential to be useful for various health benefits.