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注意:茶与牛奶一起喝有害健康

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对英国人而言,这是个坏消息:根据德国的一项研究,往茶里加牛奶会破坏茶的保健成分。
Bad news for Britons: adding milk to tea ruins the health benefits of the drink, according to a Germany study.
茶中含有一种叫多酚的复杂混合物。这种物质据信能帮助放松或扩张动脉,从而使血流更为平缓。
Tea has complex compounds called polyphenols which are believed to help the arteries to relax or dilate, thus enabling a smoother flow of blood.
科学家们对16位饮用了大吉岭红茶,年龄在50岁以上的健康女性志愿者做了测试。
Scientists tested black Darjeeling tea on 16 healthy women volunteers aged more than 50.
这些女性饮用了半升(0.9品脱)的茶,与饮用热水,奶茶的时候相比,她们的动脉得到了显著的放松。这里说的奶茶指掺有相当于饮料总体积10%的脱脂奶的茶。
When the women drank half a litre (0.9 of a pint) of tea, their arteries relaxed significantly more than when they drank hot water or tea with milk--tea in which skimmed milk, comprising 10 percent of the drink's volume, was added.
这项研究指出,影响茶发挥作用的罪魁祸首为牛奶中的三种酪蛋白。研究者认为它们会附着在一种叫儿茶酚的多酚上,使之无法发挥保健功效。
The study points the finger of blame at three casein proteins in the milk. These are thought to adhere to a kind of polyphenols known as catechins, preventing them from carrying out their health-making work.
这就是英国——这个热爱饮茶,却几乎人人都往茶中加牛奶的国度——在对抗心血管疾病方面并无进展的原因。
This could explain why Britain, a nation passionate about tea-drinking but where almost everybody adds milk to their cup, fails to make headway against cardiovascular disease.
标签:牛奶
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2009-11-29 22:14 编辑:kuaileyingyu
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