When it comes to fatty liver, people tend to think that it is related to fat, and think that only obese people will accumulate fat. In fact, fatty liver is not divided into fat and thin, malnourished people can also get fatty liver. There are many reasons for the development of fatty liver. A normal liver also contains a small amount of fat, but it only accounts for 5% of the liver, and it is combined with cellular components, and there are no lipid droplets in the cells. If fat accumulates in the liver cells for various reasons, the fat content in the liver exceeds the standard and fat droplets appear in the liver cells, a fatty liver is present. Why do people with poor nutrition also suffer from fatty liver? Insufficient nutrition and energy intake, while life and work require a lot of energy consumption, over time, will cause malnutrition and energy metabolism disorders, which induce or aggravate fatty liver. Some people have a full stomach, but a lot of high-calorie, low-nutrient food into the belly, will also lead to the accumulation of calories, lack of nutrients, thus causing fatty liver. Some wasting diseases and behaviors can also appear fatty liver, such as long-term diarrhea, tuberculosis, long-term anorexia, excessive weight loss, etc. Particularly noteworthy is the drug diet, almost all diet pills have damage to the liver, coupled with strict dieting by dieters, making them more prone to fatty liver. What should be done after the occurrence of fatty liver in people with thin body shape? First of all, we must pay attention to the reasonable combination of the three major nutrients, increase protein intake, pay attention to the quality and quantity of fat, and sugar diet should be moderate; secondly, we should resolutely change our bad eating habits and implement a regular three meals a day. Alcohol and snacks and late-night snacks should be resolutely abstained from; finally, we should pay attention to physical exercise to enhance metabolism and promote digestion and absorption.