茶與牛奶一起喝有害健康

Bad news for Britons: adding milk to tea ruins the health benefits of the drink, according to a Germany study.
對英國人而言，這是個壞消息：根據(jù)德國的一項研究，往茶里加牛奶會破壞茶的保健成分。

Tea has complex compounds called polyphenols which are believed to help the arteries to relax or dilate, thus enabling a smoother flow of blood.
茶中含有一種叫多酚的復(fù)雜混合物。這種物質(zhì)據(jù)信能幫助放松或擴(kuò)張動脈，從而使血流更為平緩。

Scientists tested black Darjeeling tea on 16 healthy women volunteers aged more than 50.
科學(xué)家們對16位飲用了大吉嶺紅茶，年齡在50歲以上的健康女性志愿者做了測試。

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.
這些女性飲用了半升（0.9品脫）的茶，與飲用熱水，奶茶的時候相比，她們的動脈得到了顯著的放松。這里說的奶茶指摻有相當(dāng)于飲料總體積10%的脫脂奶的茶。

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.這項研究指出，影響茶發(fā)揮作用的罪魁禍?zhǔn)诪榕Ｄ讨械娜N酪蛋白。研究者認(rèn)為它們會附著在一種叫兒茶酚的多酚上，使之無法發(fā)揮保健功效。

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.
這就是英國——這個熱愛飲茶，卻幾乎人人都往茶中加牛奶的國度——在對抗心血管疾病方面并無進(jìn)展的原因。

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