Whether it is a pre-diabetic patient or a diabetic, blood glucose returned to normal is generally not recommended to eat sweets, should adhere to a healthy diet for a long time, to avoid recurrence or progression of the disease. 1. Pre-diabetes: In this case, blood sugar is high but does not reach the diagnostic standard of diabetes, generally through dietary control, appropriate exercise, some patients can return to normal. However, it is not recommended to eat sweets when the blood sugar returns to normal, otherwise it is easy to cause the blood sugar to be high again. 2. Diabetes: diabetic patients need to adhere to a long-term low-sugar, low-salt, low-fat diet, even if the blood glucose control is ideal, it is not advisable to eat sweets, you should eat more crude fiber food and light food, otherwise it is not conducive to blood glucose control, which can easily lead to diabetic acute and chronic complications. 3. Hypoglycemia: If hypoglycemia occurs, sugar water or sweets should be given in time. If the symptoms do not get better or aggravate significantly, it is recommended to consult a doctor for intravenous sugar supplementation in time. Consult your physician or dietitian for specific dietary combinations.