Patients with alcoholic fatty liver commonly suffer from malnutrition of multiple nutrients , including inadequate intake and increased consumption of protein, multivitamins, calcium, magnesium, iron, zinc, selenium, dietary fiber and other nutrients. This is because many alcoholics favor fatty meats and other high-fat foods over vegetables, fruits, legumes, mixed grains and other foods high in vitamins, trace elements and dietary fiber, resulting in inadequate intake of various nutrients. In addition, the intake of ethanol can not only directly damage the liver, but the liver also needs to consume a lot of protein, vitamins and trace elements in order to metabolize ethanol, especially to consume more methyl donor nutrients choline, methionine, folic acid and vitamin B12, thus causing severe malnutrition of these nutrients. Malnutrition of all these nutrients can lead to decreased bulk immunity, decreased antioxidant function of the body, increased risk of liver cancer, and impaired blood circulation. Chronic malnutrition can promote the process of alcoholic cirrhosis and cause poor long-term prognosis. Many alcoholic fatty liver patients have obesity problems, especially those who drink a lot for a long time are more likely to be obese, mainly because energy intake is more than energy consumption for a long time, and the excess energy is constantly synthesized into fat and stored in the body; in addition, obesity also has some genetic factors. The main component of alcohol is ethanol, ethanol is a kind of empty energy material, each gram of ethanol energy production 6 kcal, while each gram of carbohydrates and protein can only produce 4 kcal, so drinking is easy to intake too much energy. Beer is known as “liquid bread”, every 100ml produce energy 32 kcal, drink a lot of beer intake of energy more, so more likely to cause obesity. But ethanol does not have any other nutritional functions, but also hinders the intake, digestion, absorption and metabolism of various nutrients, so alcoholics are prone to various malnutrition problems in addition to energy. The main nutritional problems of obese fatty liver patients are excess energy and excess blood lipids. Many obese people not only like to eat large fish and meat, but also like to eat fried food and sweets, and some are also fond of salty food and other salt food, especially not used to eating mixed grains and vegetables and fruits, resulting in excessive intake of fat, carbohydrates, protein, three major energy nutrients and cholesterol, while the intake of various vitamins and trace elements is relatively insufficient, and the intake of dietary fiber is especially insufficient. If the diet is balanced, the blood of healthy people is weakly alkaline, while obese people consume much more acidic food than alkaline food, causing acid-base imbalance in the body and forming acidic body, acidic body and hyperlipidemia are the predisposing factors of hypertension, coronary heart disease, diabetes and other chronic diseases, so Many obese fatty liver patients are prone to hypertension or coronary heart disease or diabetes mellitus. The fat deposited in the liver can be completely eliminated by actively controlling diet and increasing exercise, but the treatment of formed diabetes, coronary heart disease and hypertension is not so simple, so the consequences of obesity and hyperlipidemia are not just fatty liver, but cause other metabolic syndromes that need more attention. And the prevention of these diseases is not difficult, just need to develop a good diet and exercise habits can be.