Patients with fatty liver can eat high-protein food, but in moderation, not in excess. The liver is a digestive organ and a metabolic organ, and the three major nutrients can be converted in the liver. If too much protein is consumed, the excess protein can be converted into fat in the liver, aggravating the fatty liver. However, patients with fatty liver should not be starved, or have a long-term low protein diet, which can reduce the synthesis of very low density lipoproteins in the liver and make the excretion of triglycerides impaired, thus aggravating the fatty liver. Patients with fatty liver need to control their diet. Overnutrition or malnutrition are common causes of fatty liver, so the diet of fatty liver should be adjusted and eaten in moderation to reduce weight on the basis of a certain calorie supply, which is conducive to reducing the accumulation of fat in the liver. To remove the causes, quit drinking and treat diabetes, stop using drugs that damage the liver, increase activity, do physical exercise that suits you, and do outdoor activities to burn body fat. If necessary, you can apply lipid-lowering and liver-protective drugs to improve liver function.