There are more classifications of tumors, and tumor surgery is also divided into different sites and different nature of tumor surgery. There is no need to take any tonic in terms of diet, but a normal diet can increase nutrition, and appropriate supplementation of high quality protein, such as fish, eggs, protein powder, etc. are all very good. It is not recommended to take any supplements after surgery for small tumors, it is not necessary and it is a waste of money. It is possible that the digestive tumor cannot eat or adopt intravenous nutrition as the main diet after surgery, and only thin, well-digested liquid diet can be eaten at the beginning, and gradually resume semi-liquid diet and normal diet.