反式脂肪 為什麼如此有害？

Why Are Trans Fats So Bad?  反式脂肪 為什麼如此有害？

Trans fats are created when you make a liquid fat into a solid fat.Think margarine made from soybean or corn oil. Years ago, scientists thought these artificially hardened fats would be better for you than artery-clogging butter or lard. They also take longer to spoil. But it turns out that making liquid fats solid makes them just as bad for your arteries as saturated fat. Trans fats raise bad cholesterol, which in turn hardens and blocks your arteries, causing heart attacks and strokes.
反式脂肪是在你將液態脂肪變成固態脂肪時產生的。想想由大豆或玉米油製成的人造奶油。幾年前，科學家認為對你來說這些人工硬化的脂肪會比阻塞動脈的奶油或豬油還來得健康。它們也要花較長時間才會變質。但結果是，讓液態脂肪變固體使它們對你的動脈有害，就和飽和脂肪一樣。反式脂肪提高有害膽固醇，膽固醇接著使你的動脈硬化並堵塞，導致心臟病發作以及中風。

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