Weight control is an important component of diabetes management, especially for type 2 glucose patients, and weight control is a treatment in itself. Weight loss can reduce fat accumulation in the internal organs, improve insulin sensitivity and improve outcomes. However, some glucose patients fail to master the correct weight loss method, resulting in poor results and even some adverse reactions in the process of weight loss. Sugar lovers are reminded that scientific weight loss is necessary for effective sugar control. Clinically, the short-term application of low-carbohydrate (no more than 120 grams of carbohydrates per day, such as rice, noodles, etc.) diet has a significant weight loss effect on sugar lovers. Generally sugar lovers can lose 4-6 kg within two weeks of experiencing a low-carbohydrate diet, which has a positive effect on blood sugar control. Professor Shen Jie introduced that this diet is more suitable for overweight people with high cholesterol content. There was a 150 kg male “three high” patients, after three weeks of low-carb diet weight loss to 120 kg. After the weight was controlled, the patient’s condition improved significantly and all indicators returned to normal, eliminating the need to rely on medication. It needs to be clarified that this patient is a typical “three highs” caused by excessive obesity, so the condition is rapidly reduced after weight loss, and the patient can stop medication by continuing to pay attention to dietary habits and regular monitoring of blood glucose and blood pressure while controlling weight. However, for some sugar lovers whose pancreatic islet function has been severely damaged, even if they lose weight successfully, they still need to follow medical advice for long-term medication to control sugar. Sugar lovers who lose weight through a low-carb diet need to pay attention to the following three points. First, sugar lovers need to strengthen the vitamin supplement; second, sugar lovers need to drink a lot of water, drinking water to give a sense of satiety at the same time can effectively prevent adverse reactions in the weight loss process, such as diabetic ketosis; finally, this method is not recommended for long-term use of sugar lovers. Although weight loss has an immediate effect on sugar control, the view that the more weight loss the better and the faster the better is not advisable. Patients should lose weight reasonably under the guidance of professional doctors, based on clinical experience and with reference to the value derived from the body mass index (BMI) formula, and generally lose 5% to 7% of their body weight every month at their discretion until their weight reaches the standard (BMI of 18.5 to 24.9). For patients with severe obesity (BMI over 35), they can be evaluated by a physician and accelerated appropriately based on their own weight and other physiological factors. For the elderly, the weight loss rate can be slowed down, generally 1~2 kg per month under the guidance of a doctor; the weight loss standard can also be relaxed, and the BMI can be controlled at 25~28. If the weight of the elderly is relatively stable, with good blood sugar control and no uncomfortable symptoms, they may not need to lose weight even if they are overweight after assessment by a doctor. After losing weight on a short-term low-carbohydrate diet, sugar lovers should develop long-term healthy eating habits by eating more vegetables, reducing staple foods and moderate amounts of meat (lean meat) types, and can refer to the recipes of the hospital’s nutritional meal preparation to regulate their daily diet. In addition, maintaining proper exercise is the key to weight control, and exercise can improve insulin sensitivity, which can help a lot in the treatment of diabetes. Sugar lovers should pay attention to real-time blood glucose monitoring during the weight loss process to prevent hypoglycemia and aggravation of the disease.