PROBLEM TO BE SOLVED: To provide a novel agent for inhibiting a rise in blood glucose which can be produced by a convenient and inexpensive production method.SOLUTION: The present invention provides an agent for inhibiting a rise in blood glucose that comprises indigestible glucan comprising a sugar condensate obtained by thermally condensing a starch decomposition product with DE 70-100 or the indigestible glucan processed product and pharmaceuticals, quasi drugs, food and drink and feed, comprising the agent for inhibiting a rise in blood glucose.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2017,JPO&INPIT【課題】本発明は、簡便・安価な製法で製造可能な新規な血糖上昇抑制剤を提供することを目的とする。【解決手段】本発明によれば、DE70~100の澱粉分解物を加熱縮合させて得られた糖縮合物からなる難消化性グルカンまたは該難消化性グルカン処理物を含んでなる血糖上昇抑制剤、当該血糖上昇抑制剤を含有する医薬品、医薬部外品、飲食品および飼料が提供される。【選択図】図5