10 Most Absurd Fad Diets

The Sleeping Beauty Diet
You can’t eat while you sleep, but sleeping for several days under heavy sedation isn’t really a viable long-term weight control plan. ©iStock/Thinkstock

Getting a good night's sleep, and getting it often, is an important part of losing or maintaining weight. The less sleep you get each night, the more likely you are to be overweight; for example, if you only get five hours of sleep each night, you're 50 percent more likely to be obese than a person who routinely gets more than you -- and the worse your sleep deprivation, the worse your weight problem may be [source: Pritchard].

So armed with that knowledge, you may think something like the sleeping beauty diet sounds like a viable weight-loss plan. Elvis is rumored to have tried it, and he was the King, so why not? The sleeping beauty diet involves, as you might guess, a lot of sleep -- while under heavy sedation, which you might not have guessed. It turns out, though, that sleeping for several days straight won't make you thinner; and neither will the potentially addicting pills.