1.People who like to eat high-fat and high-calorie food. 2, less activity, more sitting and less moving office workers. 3, obese people: waist circumference > 90cm (men), > 80cm (women), and/or body mass index (BMI) > 25kg/m2. BMI = height/weight 2. Especially the recent increase in weight and waist circumference is associated with the onset of fatty liver, waist circumference is a more accurate predictor of fatty liver than BMI. 4, combined with hypertension people or blood pressure ≥ 130/85mmHg people. 5, combined with dyslipidemia population: serum triglycerides (TG) ≥ 1.7mmol/l, reduced HDL-C: HDL-<1.03mmol/l (men), <1.29mmol/l (women). 6, combined diabetes or fasting blood glucose (FPG) ≥ 5.6mmol/l. 7, hepatitis C virus (HCV) infected people. The above seven groups of people are vulnerable to fatty liver and need to improve their daily poor lifestyle. Moderate calorie restriction is recommended. Obese adults should reduce their daily calorie intake by 2092-4184 kJ (500-1000 kcal); change the dietary components, suggest a balanced diet with low sugar and low fat, reduce the intake of sucrose-containing beverages and saturated fat and trans fat and increase the dietary fiber content; moderate aerobic exercise, more than 4 times a week, with a total exercise time of at least 150 minutes.