Instead, he suggests getting these compounds through food, whether by including green tea at breakfast or by adding an extra glass of skim milk to your daily diet.

相反，他建议通过食物获得这些化合物，不论是早餐时候喝绿茶还是在日常饮食中加杯脱脂牛奶。

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If you are on a healthy diet, exercise regularly and drink green tea, it is unlikely you'll be obese.

如果您是在健康饮食，通常行使和喝绿茶，它是不太可能的您肥胖。

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Caffeine, guanine, taurine and green tea extracts all have these properties, says Ron Mendel, who has done research on diet drinks that combine these ingredients.

BBC: Who, Why, What: Can foods have negative calories?