PROBLEM TO BE SOLVED: To provide a cell membrane enhancer, an inhibiting agent for hemolytic or anemia, and an improving agent for oxygen transport to an organization, which has high safety and are useful as drink and food, a pharmaceutical product, a quasi drug, or a feeding stuff for enhancing a cell membrane such as an erythrocyte membrane, inhibiting hemolytic or anemia, or improving oxygen transport to an organization, or a material blended them.SOLUTION: The cell membrane enhancer contains, as an active ingredient, a fat globule membrane component which is known to be contained more in a fraction highly containing compound lipid from milk such as butter milk and butter serum, and means a membrane coating a fat globule in milk and a mixture of membrane components constituting the membrane.COPYRIGHT: (C)2014,JPO&INPIT【課題】安全性が高く、赤血球膜等の細胞膜の強化、溶血又は貧血の抑制、又は組織への酸素運搬改善のための、飲食品、医薬品、医薬部外品又は飼料として、或いはこれらに配合するための素材として有用な、細胞膜強化剤、溶血又は貧血抑制剤、及び組織への酸素運搬改善剤の提供。【解決手段】バターミルクやバターセーラム等の乳複合脂質高含有画分に多く含まれることが知られている、乳中の脂肪球を被膜する膜及びそれを構成する膜成分混合物を意味する脂肪球皮膜成分を有効成分とする細胞膜強化剤。【選択図】なし