By far the strongest correlate for the factors influencing knee osteoarthritis is body weight, especially in adults. For weight gain in middle-aged adults as they enter old age, there are factors of diet and exercise as well as aging. The latest findings show that a 1K increase in weight increases the load on the articular cartilage by at least 4-6 times, which shows the importance of weight control for knee osteoarthritis. However, I am often asked by patients in the clinic how to control their weight, which is a really difficult question to answer, and weight control should be a topic that involves almost most clinical departments, where weight loss efforts seem to be social, when in reality this is a complex medical issue. I recently studied some of the foreign literature on the treatment of arthritis through weight control to learn about recent advances and concepts. Traditionally, obesity is thought to be a matter of eating more and consuming less, and the treatment emphasizes eating less and exercising more. In fact, many people will say, “I eat very little and exercise a lot, but my weight still does not drop, especially some elderly women. According to the theory put forward by German nutritionists in the 1940s, the structural problem of diet leads to weight gain, mainly due to excessive intake of carbohydrates, and excessive sugar intake inhibits the action of insulin, thus producing a large amount of fat accumulation, which may even be related to type II diabetes. They are delving into the obesity-insulin-type II diabetes relationship, but the initial conclusion is that another way to lose weight is to change your current diet by eating fewer staple foods and maybe even more fatty meats!!! The second new theory is related to the flora of the intestine, obese people will have much more certain bacteria in the intestine than normal people, but only at the laboratory level, no new drugs or methods have emerged. The third can not be considered a new method, but certainly many people do not know, can be through the gastrointestinal tract surgery to lose weight, of course, this is an extreme means, but for certain extreme obesity, a variety of treatment exercise are not effective, may wish to try. Finally, certain nutritionists on the three meals a day distribution of advice, breakfast to try to eat more, and dinner to be the opposite, the current eating habits of many people in the country, most parties at night to eat and drink is a culprit leading to obesity, the deep-seated causes of obesity in the elderly is not a problem of diet and exercise, but the performance of aging, how to anti-aging currently there are many drugs and methods, there is no exact say, you can A try.