PROBLEM TO BE SOLVED: To provide a lipase activity inhibitor having excellent stability and effectiveness, as compared with the conventional art.SOLUTION: A lipase activity inhibitor contains a fruit juice of Prunus armeniaca. More preferably, the lipase activity inhibitor contains Carya illinoensis extract.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】従来のものに比べて、安定性や有効性に優れるリパーゼ活性阻害剤を提供する。【解決手段】アンズの果汁を含有させて、リパーゼ活性阻害剤とする。さらに好ましくは、ペカン(Carya illinoensis)抽出物を含有させる。【選択図】なし