Small amounts of chocolate may help prevent heart disease, but only if it replaces other high energy and therefore high calorie snacks.

少量的巧克力可以预防心脏病，但这是在以巧克力代替了其他高能量和高热量点心的前提下。

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Many Americans overeat, but a growing number of Indians do as well (even if the national calorie intake is still relatively small).

很多美国人过度饮食，但是在印度也一样有这样一群人(即使印度人口的卡路里摄入量仍然相对较小)。

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In a small study, 20 severely obese patients who were put on a very low-calorie diet lost an average of 20 percent of their body weight.

据医学期刊《肥胖》报告，在一项小型研究中，20名严重肥胖病人被限定摄取很低热量的饮食后，体重平均下降20%。

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