| abstract |
A glucose metabolism-improving agent having an activity of suppressing the increase in an after-meal glucose level, an activity of decreasing a fasting glucose level, an activity of regulating a glucose metabolism-related measure in serum, an activity of enhancing the intake of glucose into a muscle cell, and an activity of enhancing a meal-related glucose metabolism, which comprises at least one of a compound represented by structural formula (1) and a compound represented by structural formula (2); a glucose metabolism-improving composition, an agent for suppressing the increase in an after-meal glucose level, an agent for reducing a fasting glucose level, and an agent for enhancing the intake of glucose, each of which comprises the glucose metabolism-improving agent; and a food or beverage. |