Avoid fad diets. It's never a good idea to trade meals for shakes or to give up a food group in the hope that you'll lose weight — we all need a variety of foods to stay healthy.
避免时尚减肥药品：用药品代替食品或者节食的减肥方法是错误的，饮食均衡才能保持健康。
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They further point out that weight loss on fad diets, which typically restrict or prohibit certain foods, is often because the dieter has fewer food choices available.
他们进一步指出，能减肥的流行饮食法一般都要限制或禁食某些食物，这往往因为减肥者可选择的食物较少。
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It's too early to tell whether Facebook-like features in the workplace will be a passing fad or a lasting trend, but IBM says it's eating its own dog food.