While your best friend who seems to be able to eat anything and still stay slim seems to have a faster metabolism, it's not likely her metabolic rate creating such a difference.

当你认为那个无论吃什么都不会胖的好朋友有一个快速的代谢水平时，你要知道，她的代谢率和你并没有多大差异。

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If you want to stay as slim as Mr. Valentino Garavani simply eat one bite of each thing on your plate for lunch and leave it at that.

FORBES: How To Stay As Thin As Valentino

Many researchers believe that it's actually cheaper, in our fast-food society, to eat a high-fat, high-calorie diet than it is to stay slim.

FORBES: The Hidden Cost Of Obesity