为预防白内障,人们宜常饮茶,尤其是绿茶。因为茶叶中除了含有茶多酚外,还含有多种维生素和矿物质。美国农业部营养与衰老研究中心的科学家发现,凡血浆中胡萝卜素指标较低者,其白内障发病率要高出正常人的4~5倍。茶叶中所含的胡萝卜素比一般植物性食品都要高。蔬菜中菠菜含胡萝卜素算是高的,每100克为3.90毫克,而茶叶每100克为5.46毫克。维生素C可以减少光线和氧对眼球晶状体的损害,具有防止白 To prevent cataract, people should often drink tea, especially green tea. Because tea contains tea polyphenols in addition, but also contains a variety of vitamins and minerals. Scientists at the U.S. Department of Agriculture’s Center for Nutrition and Aging Research found that the incidence of cataracts in people with low carotene levels in plasma is four to five times higher than that of normal people. Carotene contained in tea than the general plant foods are higher. Vegetables, spinach carotene is considered high, 3.90 mg per 100 grams, while the tea is 5.46 mg per 100 grams. Vitamin C can reduce light and oxygen damage to the lens of the eye, with white to prevent