Nowadays, there is a wrong message spreading among tumor patients and their families, even some doctors think that tumor patients should go on a diet and reduce nutritional intake to cut off food for tumor, so as to achieve the purpose of “starving” the tumor to death, which is absolutely wrong, because tumor is a part of tumor patient’s body, when tumor patient enters into the period of wasting, it is the period of nutritional deficiency, at this time, they should increase nutritional supplement instead of diet. When the tumor patient enters the period of losing weight, it is the period of nutritional deficiency. If the patient does not supplement nutrition, the tumor will make the human body decompose its own muscles and fatty tissues to supply energy, which will further make the person lose weight, and this is the advanced “malignant disease”, if the supplement is not strengthened, the patient will be physically exhausted and cannot support the treatment, only death. Therefore, as long as the patient enters into wasting, nutrition should be supplemented, so as to maintain the energy supply for life activities, support the treatment and overcome the tumor!