Every few months, a new study purports to prove that a calorie is a calorie is a calorie, and that the only way to lose weight is to burn more than you take in.

• 每几个月，一些研究想要证明摄入一卡路里就会吸收一卡路里，所以减肥的方式就是燃烧更多摄入的卡路里含量。