α-AMYLASE INHIBITOR

PROBLEM TO BE SOLVED: To obtain an α-amylase inhibitor which can safely, surely and sufficiently satisfactorily prevent or treat diseases, even when administered for a long period. SOLUTION: This α-amylase inhibitor is characterized by containing Acanthopanax sieboldianum or its extract. The Acanthopanax sieboldianum is naturally originated and thereby has low toxicity and an α-glucosidase-inhibiting action. Hence, a sugar absorption inhibitor, a blood glucose level elevation or offal fat accumulation inhibitor, or a preventing or treating agent for diabetes, obesity, hyperlipemia or the like which can safely, surely and sufficiently satisfactorily prevent or treat these diseases, even when administered for a long period, and an oral or parenteral composition, food or a medicine containing the agent can be provided. COPYRIGHT: (C)2004,JPO&NCIPI