Here too, the explanation is quite simple. During treatment the patient has been only just above the verge of protein deficiency and has had the advantage of protein being fed back into his system from the breakdown of fatty tissue. Once the treatment is over there is no more HCG in the body and this process no longer takes place. Unless an adequate amount of protein is eaten as soon as the treatment is over, protein deficiency is bound to develop, and this inevitably causes the marked retention of water known as hunger- edema.
The treatment is very simple. The patient is told to eat two eggs for breakfast and a huge steak for lunch and dinner followed by a large helping of cheese and to phone through the weight the next morning. When these instructions are followed a stunned voice is heard to report that two lbs. have vanished overnight, that the ankles are normal but that sleep was disturbed, owing to an extraordinary need to pass large quantities of water. The patient having learned this lesson usually has no further trouble.
Source: Pounds and Inches by Dr. Simeons