PROBLEM TO BE SOLVED: To provide a pharmaceutical, a quasi drug and a food using materials having excellent endurance improving effect, anti-fatigue action, etc., a high safety and a wide coverage.SOLUTION: The invention relates to the improver for endurance, anti-fatigue agent, lipid combustion promoter comprising hydroxypropylated starch as an active ingredient. The invention relates to the food characterized by comprising the hydroxypropylated starch and having the endurance improving effect, and indicating that the food is used for improving endurance.COPYRIGHT: (C)2008,JPO&INPIT【課題】優れた持久力向上作用、抗疲労作用等を有し、安全性が高く且つ適用範囲が広い素材を用いた医薬品、医薬部外品及び食品の提供。【解決手段】ヒドロキシプロピル化澱粉を有効成分とする持久力向上剤、抗疲労剤、脂質燃焼促進剤。【選択図】なし