If the patient has poor liver function, such as having hepatitis or other liver diseases. First of all, patients should absolutely avoid alcohol, because alcohol is the most damaging to the liver, and for patients who have insufficient liver function reserve, drinking alcohol may induce liver insufficiency or liver failure. Secondly, patients should eat less fried and animal fats, because the high cholesterol content of such foods can induce elevated blood lipids, further aggravating the patient’s fatty liver and increasing the burden on the liver. Then, for patients with poor liver function, they should eat less sweets, especially chocolate, cakes with high sugar content, and other foods with high glucose content, because foods with high sugar content will affect the patient’s appetite and aggravate gastrointestinal distention, which will be easily converted into fat and accelerate the storage of fat in the liver, further aggravating the patient’s fatty liver condition. Finally, patients with poor liver function should moderately eat acidic fruits, such as oranges, grapefruit and oranges, which have a beneficial effect on the recovery and preservation of liver function.