In the late stages of liver cancer, loss of appetite may be related to gastrointestinal dysfunction caused by widespread metastasis of cancer cells. If loss of appetite occurs, it is first recommended to try eating orally as much as possible, and consuming rice porridge or noodle soup to increase nutrition. If there is still no appetite, nutritional support can be provided through parenteral nutrition, such as using nutritional elements and substances for intravenous treatment. If the results are not satisfactory, medication can be administered through a central venous catheter for better outcomes.