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'The Overnight Diet' Supposedly Helps You Lose Weight While You Sleep [VIDEO]

The Overnight Diet
Author Caroline Apovian M.D. lays out her plan for losing weight while you sleep. Wal-Mart

Certain diets claim to benefit people with demanding schedules who don't otherwise have the time to diet or exercise, but losing weight while you sleep?

That's what obesity specialist and former NASA nutritionist Dr. Caroline Apovian says you can do in her new book The Overnight Diet: The Proven Plan for Fast, Permanent Weight Loss.

Dr. Apovian explained the details of her weight loss plan to ABC News, "You can lose up to two pounds overnight. And then for the six days, you can lose up to nine pounds in one week after the first week. That first night, you go to sleep, you sleep your eight hours, you are down two pounds."

"If you continue to get enough sleep every night, you won't get those hunger pangs. The hunger pangs come from lack of sleep, which induces the hunger hormone to get secreted from your gut."

The diet plan starts off with a "One Day Power Up" consisting of an all liquid diet meant to speed up the metabolism overnight, burning two pounds by the morning. The next six days of the week consist of a high protein diet to keep your body in "fat burning mode."

No food is off limits during the "Six Day Fuel U"p and unlimited fruits and vegetables are encouraged to ward off hunger. Dr. Apovian says around nine pounds are shed during the remaining six days bringing the weight loss total to 11 pounds in one week.

To no great surprise, some experts doubt the seemingly miraculous results you can experience from The Overnight Diet, especially since there are no exercise requirements.

Keith Ayoob, director of nutrition at the Albert Einstein College of Medicine's Rose F. Kennedy Center in New York, is one of these skeptics.

"In order to lose two pounds of body fat overnight you'd have to burn up about six or seven thousand calories and there's just no way to do that by sleeping," Ayoob told ABC News.

Both Ayoob and Apovian agree that the two pounds someone would lose during the first 24 hours would be water weight and not fat.

Studies in the past have probed the association between reduced sleep and weight gain, but haven't provided such a detailed strategy for losing weight. Researchers found that women who get less than the recommended eight hours of sleep tended to put on more weight as they got older.

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