Diabetic patients are allowed to drink water, in the diet of low-sugar, low-salt, low-fat food. Diabetic patients are recommended to take low-sugar, low-salt, low-fat food as the mainstay of their diet, without restricting the amount of water intake, to drink enough plain water to ensure that there is sufficient daily water intake. Light tea can be consumed in moderation, and sugary drinks as well as alcohol should be avoided. Pay attention to develop good eating habits, so that the diet regular, regular, chewing slowly, avoid overeating. Pay attention to cooking with less salt and oil, and avoid sugary foods such as sugar cubes and honey. At the same time, we should actively seek medical treatment, strictly comply with the doctor’s instructions to take medication, pay attention to monitoring blood glucose, and regularly go to the hospital for rechecking.