In China, 79.5% people lose weight every year. According to big data, there are more than 90 million obese people and 200 million overweight people in China. 202 1, 79.5% netizens in China tried to lose weight, while 20.5% netizens didn't. The benefits of losing weight mainly include improving image, reducing the incidence of blood pressure and hyperlipidemia and preventing arthritis.