PURPOSE: A composition containing fermented red ginseng or extract thereof is provided to suppress differentiation of adipocytes and to prevent and treat obesity. CONSTITUTION: A composition for preventing and treating obesity contains red ginseng or extract thereof as an active ingredient. The composition further contains puffed red ginseng or extract thereof. The weight ratio of the fermented red ginseng and puffed red ginseng is 10:90-90:10. A pharmaceutical composition for treating and preventing obesity contains the fermented red ginseng or extract thereof, puffed red ginseng or extract thereof as an active ingredient. A food composition for preventing and treating obesity contains the fermented red ginseng or extract thereof, puffed red ginseng or extract thereof as an active ingredient. The extract is isolated using hot water or ethanol.본 발명은 발효홍삼 또는 이의 추출물을 유효성분으로 함유하는 비만예방 및 치료용 조성물을 제공한다. 본 발명에 따른 비만예방 및 치료용 조성물은 약제학적 또는 식품조성물로서 지방세포의 분화를 억제하여 비만예방 및 치료에 탁월한 효과를 발휘한다.
