The present invention relates to a yeast hydrolysate, which inhibits the deposition of fat around internal organs so as to treat or prevent obesity, and which has antioxidant activity. In addition, the present invention relates to a method for preparing the yeast hydrolysate, and to a food, animal food, pharmaceutical composition, and cosmetic composition comprising the yeast hydrolysate.La présente invention concerne un hydrolysat de levure, qui inhibe le dépôt de lipides autour des organes internes de manière à traiter ou prévenir l'obésité, et qui a une activité antioxydante. De plus, la présente invention concerne un procédé pour préparer l'hydrolysat de levure, et un aliment, un aliment pour animaux, une composition pharmaceutique, et une composition cosmétique comprenant l'hydrolysat de levure.본 발명은 체내 지방 축적을 저해함으로써 비만을 치료 또는 예방하고 항산화 활성을 갖는 효모 가수분해물을 제공한다. 아울러 본 발명은 상기 효모 가수분해물의 제조방법 및 상기 효모 가수분해물을 포함하는 식품, 사료, 약학적 조성물 및 화장료 조성물을 제공한다.