It is intended to provide a granular composition containing reduced coenzyme Q10, which has high oxidative stability and high biological absorption and in which an oily component containing reduced coenzyme Q10 forms domains and is polydispersed in a matrix containing a water-soluble excipient, a method for producing the same, and a method for stabilizing the same. Further, it is intended to provide a food, a food with nutrient function claims, a food for specified health use, a nutritious supplement, a nutrient, an animal drug, a drink, a feed, a pet food, a cosmetic, a drug, a therapeutic agent, a preventive agent and the like.