Cancer prevention and anti-cancer food, not really. Absolute anti-cancer and anti-cancer food does not exist. Although some foods contain anti-cancer substances, it does not mean that eating such foods can fight cancer. Because after the food is ingested into the digestive tract, the nutrients will be broken down by digestive enzymes, and the anti-cancer substances will lose their original effect after decomposition. The core of cancer prevention through food is a healthy and balanced diet. In daily diet, we should pay attention to keeping three meals in proper quantity and nutritional balance, and not try to achieve the effect of cancer prevention and anti-cancer through a single kind of food. In addition, one should exercise properly, maintain good living habits and have regular medical check-ups. It is impossible to cure cancer through food. Most of the methods for treating cancer are comprehensive treatments based on surgical resection, which can be supplemented by radiotherapy and chemotherapy according to the condition after surgery.