茶水是人们喜爱的保健饮料，茶叶中含有丰富的营养成分，经常饮茶有利于身心健康，茶叶中含有５００多种化学成分［１］，其中具有营养作用的有蛋白质、氨基酸、多糖、维生素和无机盐。另外茶叶中还含有丰富的生物活性物质，例如茶多酚等物质。为了研究茶叶对血脂和体重的影响 Tea is one of the favorite health drinks, tea is rich in nutrients, often tea is conducive to physical and mental health, tea contains more than 500 kinds of chemical composition [1], which have nutritional effects of protein, amino acids, polysaccharides, vitamins and Inorganic salts. In addition, tea is also rich in bioactive substances, such as tea polyphenols and other substances. In order to study the effect of tea on blood fat and body weight