An object of the present invention is to find a component that is safe and is capable of effectively exerting various effects such as prevention or amelioration of diabetes, prevention or amelioration of metabolic syndrome, amelioration of insulin resistance, inhibition of an increase in a postprandial blood sugar level, and inhibition of α-glucosidase activity. The present invention provides agents for preventing or ameliorating diabetes or the like, the agents including a component of a hybrid plant of Camellia sinensis and Camellia taliensis as an active ingredient. The hybrid plant is preferably Sun Rouge, and each of the agents preferably includes a tea leaf extract of the hybrid plant.
本发明的目的是找到一种安全且能够有效发挥各种作用的成分,如预防或改善糖尿病、预防或改善代谢综合征、改善
胰岛素抵抗、抑制餐后血糖
水平的升高以及抑制α-
葡萄糖苷酶活性。本发明提供了用于预防或改善糖尿病或类似疾病的制剂,这些制剂包括作为活性成分的山茶和山茶杂交植物的成分。杂交植物最好是太阳红,每种制剂最好包括杂交植物的茶叶
提取物。