Diet regimen plays a very important role in the treatment of fatty liver. China is a big food country, and the way of cooking dishes is still based on stir-frying and frying, so it is very important to know what oil to use. For patients with fatty liver, it is recommended to use less fats with high saturated fatty acid content, such as lard, butter, butter or cream. Fats and oils with high unsaturated fatty acid content, such as tea oil, olive oil and flax oil, are recommended, and are recommended to be served cold, which will not destroy the nutritional structure of unsaturated fatty acids. Of course, the most important control point is to control the proportion of fat and oil in the whole diet to less than 25%, not fried with olive oil, the amount of oil can be used a lot at will, the diet should still pay attention to the principle of less oil, less sugar, it is best to adopt the Mediterranean diet, that is, plant-based food, mainly nuts, fruits, vegetables, whole grains, the amount of cooking oil per day at 10-15g or so.