Vaccariello says that she came up with the amount of 400 calories after consulting with dietitians who advised her that this is enough calories to help you feel full and prevent cravings, while also allowing you to get an adequate amount of nutrients.

According to a recent Television show, one woman has successfully lost six pounds in just two days by following the 400 Calorie diet. Dieters are told that weight losses of up to eleven pounds in two weeks are possible.