High blood sugar can eat apples, but should pay attention to moderation. High blood sugar if it has not reached the level of diabetes, in the pre-diabetes, this time is allowed to eat apples, but need to pay attention to avoid eating too much. If the blood sugar is high and has reached the level of diabetes. In this case, if the blood sugar has been controlled and stabilized, you can eat a small amount of apples between meals, such as 1/4 of a small apple, while paying attention to monitor the fluctuation of blood sugar afterwards. If the blood sugar is not yet under control and the blood sugar level is very high, then eating apples is not recommended for the time being. For patients with high blood glucose, it is recommended to consult a doctor in time for treatment under the guidance of the doctor.