Glucose tolerance here should refer to the oral glucose tolerance test, oral glucose tolerance test did not pass two weeks to review normal, usually can not immediately return to normal diet. Oral glucose tolerance test did not pass, usually for glucose tolerance is low, belongs to the pre-diabetic state, at present can not completely exclude diabetes, so can not resume normal eating habits. In pre-diabetes, patients need to avoid eating a lot of sugary foods, such as pastries, chocolate, milk tea, cakes, etc. If too much of these desserts are eaten, the glycemic index may rise suddenly and rapidly. If the oral glucose tolerance test is normal and there are no symptoms such as polyuria, polydipsia, polyphagia, emaciation, etc., diabetes can basically be ruled out, and normal diet can be resumed at this time. However, try to be light and nutritious, and reduce the amount of fat, calories and sugar content of food, which are unhealthy diets that may not only affect glucose tolerance, but also blood lipids and blood pressure. For the time being, it is recommended to observe for a period of time. If symptoms such as polyuria, polydipsia and thirst occur, you need to go to the hospital regularly to test your blood glucose and target treatment under the guidance of your doctor.