Genmai-Koso

Genmai Koso is a Japanese health food company specializing in the development and manufacture of fermented brown rice supplements. Established in 1971 and headquartered in Sapporo, the company leverages traditional fermentation technology using Aspergillus oryzae to create its flagship product line, Hi-Genki. Their products are designed to provide a concentrated source of enzymes, vitamins, and minerals to support digestive health and metabolic function. Beyond manufacturing, Genmai Koso is deeply involved in dietary education and the promotion of macrobiotic principles through its various wellness centers and publications. The company maintains a strong commercial presence in Japan and exports to several international markets.