PURPOSE: A pharmaceutical or food composition containing a water soluble extract of tronadora for anti-diabetes is provided to suppress aldose reductase and glycosylated end-product and to prevent or treat diabetes or diabetes complications. CONSTITUTION: A pharmaceutical composition for treating diabetes contains an ethyl acetate fraction as an active ingredient, which is prepared by sequentially fractioning a methanol extract with n-hexane, dichloromethane, and ethyl acetate. A pharmaceutical composition for treating diabetes complication contains the ethyl acetate fraction as an active ingredient. The diabetes complications are caused by excessive sorbitol accumulation. A food composition for preventing diabetes contains the ethyl acetate fraction as an active ingredient. [Reference numerals] (AA) Tronadora； (BB) N-hexane； (CC) Dichloromethane； (DD) Ethyl acetate； (EE) N-butanol본 발명은 트로나도라의 수용성 추출물을 포함하는 항당뇨 약학 또는 식품 조성물에 관한 것으로, 알도오스 환원효소 및 최종당화산물에 대한 억제효과가 있음을 확인한바, 당뇨병 또는 당뇨합병증의 예방 또는 치료제로 사용될 수 있다.
