Hepatocellular carcinoma, i.e. malignant tumor of liver, can be divided into two categories: primary and secondary. Primary liver malignant tumors originate from epithelial or mesenchymal tissues of the liver, and the former is called primary liver cancer, which is a highly prevalent and harmful malignant tumor in China; the latter is called sarcoma, which is less common compared with primary liver cancer. Secondary or metastatic liver cancer refers to the invasion of malignant tumors originating from multiple organs of the body to the liver. For patients with liver diseases such as hepatitis B and cirrhosis, they can often eat lettuce, bamboo shoots and asparagus in three meals a day, because these three foods have obvious functions of protecting liver and preventing cancer, eliminating phlegm, diuretic and detoxification, and helping dirt to be discharged from feces. 2, lettuce: increase appetite, prevent anemia Lettuce leaves are rich in calcium, carotene and vitamin C, while the odor lettuce can promote gastric juice, digestive enzymes and bile secretion, help hepatitis B, C virus carriers and chronic liver disease patients to improve appetite. Cirrhosis combined with anemia often eat lettuce, can promote the secretion of organic acids and enzymes, increase iron absorption, help platelets rise and recovery, to prevent the deterioration of the disease. 3, bamboo shoots: laxative, detoxification bamboo shoots diet can achieve laxative effect, the intestinal tract of Escherichia coli can bamboo shoots cellulose synthesis of vitamins required by the body, but also with the intestinal cholesterol metabolites bile acid synthesis can not be absorbed composite waste out of the body. Bamboo shoots dietary therapy recommended with flat mushrooms, monkey head mushrooms 60 grams each, lean pork or chicken 200 grams each, plus bamboo shoots 600 grams cut into slices, fried in vegetable oil or stewed over moderate heat, often eaten to prevent digestive tract tumors and liver cancer, but those with severe gastric bleeding and those with esophageal varices should eat bamboo shoots carefully. 4.Asparagus: reduce fatigue Asparagus contains nucleic acid, folic acid, glutathione, choline, arginine, mannoprotein and peptidase rutin, which can effectively inhibit the growth of cancer cells. Asparagus can also be used as a nutritional supplement for dietary therapy for liver cancer patients, which can reduce fatigue and increase appetite. As a dietary therapy, fresh asparagus can be boiled and eaten cold, once in the morning or once before bedtime; or 5-10 grams of asparagus root can be decocted with water and consumed as tea every day.