七大健齿食物不能错过

2012-03-09 00:00:00来源:沪江英语网

无糖口香糖

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  Sugar-Free Gum

  无糖口香糖

  You won't hear many positive health claims surrounding artificialsweeteners, but when it comes to dental health, there's one exception: Xylitol. The sugar replacement, which is found in many sugar-free gums and mints, is helpful because it prevents harmful bacteriain plaquefrom metabolizingsugar, thus generating harmful acids that degradetooth enamel. In other words, it's the anti-sugar -- doing exactly the opposite of what sucrosecan do, which is feed the bacteria that leads to tooth decayand gum disease.

  关于人工甜味剂对健康有益的正面报道不是很多,但是对牙齿健康而言,就有一个例外:木糖醇。在很多无糖口香糖和薄荷糖里面都有这种糖替代品。它对牙齿有益,能够阻止牙菌斑里的有害细菌进行代谢,这种细菌能产生损害牙釉质的有害牙斑酸。 换句话说,它是抗糖,作用正好和蔗糖相反,蔗糖能促进细菌的繁殖从而导致蛀牙和牙周病。

本文关键字: 健齿

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