A common symptom of diabetes is obesity, which seriously affects the normal life of diabetic patients. In clinical practice, the combination of diabetes and obesity is a very common phenomenon. more than 90% of people with type 2 diabetes are obese, and obesity not only significantly increases the risk of developing diabetes, but also increases the risk of developing complications of diabetes and other diseases (cardiovascular disease, stroke and certain tumors). Now, hundreds of millions of people around the world are suffering from the dual threat of diabetes and obesity, and it is not an exaggeration to call both “epidemics”. More than 90 percent of people with type 2 diabetes are also obese. Overweight and obesity (especially abdominal obesity) is one of the major risk factors for type 2 diabetes, and it is a manageable and correctable factor that can be improved through a healthy diet and proper exercise. The risk of developing diabetes and its complications can be significantly reduced by losing just a small percentage of body weight. It is estimated that if weight gain in the population could be effectively controlled, the incidence of diabetes could be reduced by at least half. The risk of developing diabetes can increase with weight gain, and again, weight control can prevent diabetes. In people at high risk for diabetes, moderate weight loss (i.e., 5% to 10% weight loss) and increased exercise can effectively delay or even prevent the onset of type 2 diabetes, and even in people who already have type 2 diabetes, moderate weight loss can delay disease progression and prevent complications. For example, the Diabetes Prevention Program found that subjects who increased exercise and lost 5 to 7 percent of their body weight (i.e., 10 to 15 pounds or 4 kg to 7 kg) during the study period had a 58 percent lower risk of progressing to diabetes. In those overweight and obese people who already had diabetes, moderate weight loss had the effect of improving insulin resistance, lowering blood pressure and reducing the risk of cardiovascular disease, and it also helped to reduce the rate and use of glucose-lowering medications. Obesity is not only one of the important risk factors for type 2 diabetes but also an important risk factor for other non-communicable diseases such as cardiovascular diseases (heart attacks and strokes). Today, worldwide, the annual number of deaths from diabetes and other obesity-related NCDs already exceeds the number of deaths due to AIDS.