難消化性デキストリン添加飲料の健常人食後血糖値に与える影響

抄録

An inhibitory effect on the increase in the postprandial blood glucose level was evaluated with a test soft drink containing indigestible dextrin (ID). After 27 healthy volunteers consisting of 14 males and 13 females were given the test soft drink supplemented with ID (6g as dietary fiber) together with a 537 kcal starchy diet, blood glucose levels were determined at 30, 60, and 120 minutes after meal. Additionally, after the same subjects were given a control soft drink without ID together with the same starchy diet, blood glucose levels were determined to compare inhibitory effect on the increase in postprandial blood levels in a cross over experimental design. Subjects were first divided into two groups with a peak blood glucose level at 30 minutes and 60 minutes after meal and they were further divided into two groups the higher and lower blood glucose levels. The effects were comparatively evaluated with the respective subjects between the test and control soft drink ingesting periods.
As a result, a clear significant inhibitory effect of the soft drink supplemented with ID on the postprandial blood glucose level in 23 subjects who showed a peak blood glucose level at 30 minutes after diet and 12 subjects who were apt to elevate their blood sugar levels (the former at p<0.05 and the latter at p<0.01). However, no significant effect was observed in 11 subjects who were hard to elevate their blood glucose levels. It is accordingly become clear that the test soft drink supplemented with ID has the inhibitory effect on the postprandial blood glucose level in subjects who were apt to elevate their blood sugar levels. No clear evaluation was made with subjects who showed their peak blood glucose levels at 60 minutes after meal because of the small number of replications of this group.
As shown above, as the test soft drink supplemented with ID showed an inhibitory effect on the postprandial blood glucose level in healthy volunteers who were apt to elevate their blood glucose levels and it did not cause side reactions such as hypoglycemia or digestive disorders, it is suggested that the soft drink with supplemented with ID may be of great use as a safe and simple tea beverage to reduce the high postprandial blood glucose levels.