Being the fat absorption inhibiter which contains the chestnut skin extract, in addition, it can obtain even from the waste after the primary utilizing by being the eating and drinking item which contains the said fat absorption inhibiter, rise control of lipid such as neutral fat in the blood due to obstructing the absorption of the lipid of meal origin, it pulls to the prevention of accumulation of the lipid being effective, it does not exert influence on flavor and is superior in connected food habit, it is possible to offer the fat absorption inhibiter which does not need troublesome manufacturing process and the eating and drinking item which uses that.栗皮抽出物を含有する脂肪吸収抑制剤であること、また、該脂肪吸収抑制剤を含有する飲食品であることにより、一次利用後の廃棄物からでも得ることができ、食事由来の脂質の吸収を阻害することによる血中中性脂肪等の脂質の上昇抑制、ひいては脂質の蓄積防止に有効であり、風味に影響を及ぼさず連食性に優れ、煩雑な製造工程を必要としない脂肪吸収抑制剤及びそれを用いた飲食品を提供することができる。