If you have high blood glucose but need to gain weight, you can adjust your diet, exercise and medication, appropriately relax dietary restrictions, perform muscle building exercises and try to avoid metformin and other glucose-lowering drugs that have a weight loss effect. 1. Diet: If you have high blood sugar but have the need to gain weight, you should appropriately relax the dietary restrictions and increase the nutrition such as milk, fish, eggs and vegetables appropriately. Calculate the calories needed according to the degree of weight and adjust the calories and structure of the diet. Pay attention to the application of blood glucose meter to monitor blood glucose to ensure that the diet that promotes weight gain does not conflict with blood glucose control. 2. Physical exercise: Increasing weight through physical exercise, especially anaerobic exercise, is conducive to muscle gain. Muscle outweighs fat in the body, so the greater the proportion of muscle, the heavier the weight. 3. Glucose-lowering drugs: It is recommended to avoid the use of metformin and other glucose-lowering drugs that have a weight-reducing effect. Patients with high blood sugar but want to gain weight are advised to consult their doctors.