Hepatitis B is a contagious disease caused by hepatitis B virus infection, which can lead to liver function damage in patients, manifested by symptoms such as loss of appetite, nausea and vomiting. Hepatitis B patients should consume more fresh fruits and vegetables to ensure adequate vitamin intake and moderate amounts of high-quality protein and sugar: 1. Vitamins: mainly from fresh vegetables, fruits and beans, etc. You can choose carrots, empty cabbage, etc. to supplement vitamin A; peanuts, peas, soybeans, etc. to supplement vitamin B; you can also choose spinach, mushrooms, etc. to supplement vitamin K. In addition, foods rich in vitamins are tomatoes, pears, grapes, bananas, dates, etc., these foods can, to a certain extent, improve the malabsorption of vitamins due to bile secretion dysfunction; 2, high-quality protein: hepatitis B patients can be properly supplemented with foods such as fish, milk, eggs, soy products and other high-quality protein content to alleviate the low protein levels caused by impaired liver function and liver synthesis dysfunction, but need to avoid overconsumption;. 3, sugar: rice, noodles, steamed bread can be consumed to supplement energy, grains such as black rice, sorghum rice, oats, etc. are also beneficial to the body, but avoid excessive intake of foods high in sugar, so as not to cause elevated blood sugar or fat conversion, which increases the digestive and metabolic burden on the liver. Patients with hepatitis B can have certain damage to their digestive function, so they should eat less and more meals, with a light, easily digestible diet, avoiding high sugar, high oil, high salt foods and spicy, cold and other stimulating food intake, in order to reduce the digestive burden and achieve the effect of nourishing and protecting the liver. If hepatitis B is combined with cirrhosis and there is severe impairment of liver function, a low protein diet should be prescribed to avoid azotemia. Patients also need to receive standardized treatment and reasonable application of drugs, because dietary adjustment cannot achieve the effect of treating the disease.