To provide a dietary fiber supplement food product in which an ideal dietary fiber of about 20 g per 1 day, especially insoluble dietary fiber, is blended by a larger amount with respect to a water-soluble dietary fiber.SOLUTION: Provided are: a dietary fiber supplement food product in which two or more of a food material comprising a water-soluble dietary fiber and an insoluble dietary fiber are blended, and in which the ratio of the blended amount of the insoluble dietary fiber to the blended amount of the water-soluble dietary fiber is 1.5 to 2.5; a dietary fiber supplement food product in which the food material comprising a water-soluble dietary fiber and an insoluble dietary fiber is a food material obtained from powder-processing of a food processing waste such as scallion leaf sheath part, scallion root board part, sweet potato vine, okara or the like or a seaweed such as ogonori (Gracilaria), hondawara (Sargassum fuluvellum) or the like.SELECTED DRAWING: None【課題】理想とされる1日に20g程度の食物繊維、とりわけ不溶性食物繊維を水溶性食物繊維に対して多く配合する食物繊維補給食品の提供。【解決手段】水溶性食物繊維及び不溶性食物繊維を含む食材を2以上配合した食物繊維補給食品であって、前記水溶性食物繊維の配合量に対する前記不溶性食物繊維の配合量の比を、1.5~2.5とした食物繊維補給食品。水溶性食物繊維及び不溶性食物繊維を含む食材が、ラッキョウ葉鞘部、ラッキョウ根盤部、サツマイモの蔓、オカラ等の食品加工廃棄物又はオゴノリ、ホンダワラ等の海藻類を紛体処理して得られた食材である食物繊維補給食品。【選択図】なし