Very briefly, very low in calories diets lead to the following:
Wasting and muscle mass cracking, causing the appearance of bad and also lead to a slowdown in the rate of metabolism (burn) permanently
Stop the inevitable process of burning fat and burn calories.
The survival of areas in the body can not burn fat by whatever reduced calories and provide whatever your performance of exercises and then begin the research phase for 100 to lose the way the rumen or burn abdominal fat without any avail.
A terrible feeling of hunger and frustration, depression and the inevitable exit from the system.
Permanently damage the body and members.
Constant weight fluctuation, which is known as Yoyo Diet.