Loosing weight for some can be a difficult ordeal when it involves eternally depriving oneself of a hearty meal. unlike other calorie restriction programs, periodic fasting allows the individual a feasting period following an initial period during which the individualis required to undergo abstenance from food. It has been shown in humans and animals that there is no significant increase in weight after a period of feasting on even fatty foods when it is preceded by a fasting period
The mechanism of weight management through periodic fasting is thought to be in part due to the increased sensitivity to insulin. Following the fasting period the cells tend to respond more readily to insulin and take up glucose more effectively. Furthermore fasting is also associated with cleansing of the body allowing old substances to be fully absorbed during the period of fasting such that when followed by feasting, the body absorbs and makes use of food nutrients more efficiently.