PROBLEM TO BE SOLVED: To provide a food from which a large amount of protein is ingestible, and a method for producing the same.SOLUTION: A puffed food as an extrusion molded product containing a 45 to 96 mass% of micellar casein based on a whole solid matter, and processed food including the puffed food. The puffed food is obtained by feeding a biaxial extruder with a raw material mixture containing micellar casein and extrusion-molding the mixture under pressure and heating.SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】タンパク質を多く摂取できる食品およびその製造方法の提供。【解決手段】ミセラーカゼインを全固形分の45~96質量%含む押出し成形物である膨化食品と、前記膨化食品を含む加工食品。前記膨化食品は、ミセラーカゼインを含む原料混合物を二軸エクストルーダーに投入し、加圧加熱しながら押出し成形して得られる。【選択図】なし