The present invention provides a particulate composition wherein an oil component (A) comprising a poorly water-soluble bioactive substance is poly-dispersed while forming a domain in a matrix comprising of a water-soluble excipient comprising a water-soluble polymer as a main component, and wherein the sphericity of the particulate composition is not less than 0.9 and a method of producing the same. The particulate composition simultaneously has excellent water solubility, workability, tabletability and heat-resistance. It also provides a food, food with nutrient function claims, food for specified health uses, nutritional supplement, nutritional product, animal drug, drink, feed, pet food, cosmetic, pharmaceutical product, therapeutic drug, prophylactic drug and the like, which contain the particulate composition.
