With the progress of society and the improvement of people's living standards, obesity and the diseases it causes have become more and more important. Obesity is often accompanied by diabetes, fatty liver, dyslipidemia, hypertension, coronary heart disease and other chronic diseases. It is one of the diseases that seriously affect people's health and quality of life, and has become a serious public health problem faced by countries around the world. In China, the traditional diet structure has changed, the proportion of obese or overweight people is rising, and the problem of population obesity is becoming increasingly serious.