| 摘要 |
PROBLEM TO BE SOLVED: To provide a blood sugar metabolism improver that improves or enhances a sugar metabolism function in a skeletal muscle, and an oral composition including the same.SOLUTION: An extract from at least one willow bark selected from among Salix daphnoides, Salix purpurea, Salix fragilis and Salix alba exhibits an excellent effect of improving or enhancing a sugar metabolism function in a skeletal muscle. This blood sugar metabolism improver not only enhances a hypoglycemic effect by exercise but also gives, without exercise, the same effects as those obtained in exercise. |
