For patients with chronic viral hepatitis B, the main taboo is to avoid smoking and alcohol. The liver is the largest detoxification organ in the body, and normal liquor, beer and wine will be detoxified and metabolized by the liver, so for patients with hepatitis who have poor liver function reserves, drinking alcohol will greatly increase the burden on the liver and may cause liver damage or liver failure, so the main thing for patients is to avoid alcohol and smoking. In addition, if the patient has liver fibrosis and fundic esophageal varices, it is not recommended to eat food that is too hard or too hot, because such conditions may cause the rupture of the fundic esophageal varices, resulting in upper gastrointestinal bleeding, and the patient needs to be further admitted to the hospital for hemostatic treatment. For patients in the decompensated stage of cirrhosis, with ascites and hypersplenism, it is recommended to eat less fatty foods, especially foods with high fat content, such as egg yolk, milk and fatty meat, because these substances may induce hepatic encephalopathy.