Patients with high blood pressure can eat rock candy appropriately, but should avoid it if combined with diabetes. Hypertension is associated with heredity, poor lifestyle, environment, disease, medication, etc. 50% of hypertensive patients may not have any symptoms, and those who do may experience dizziness, stiff neck, chest tightness, numbness of the hair, etc. Eating small amounts of rock candy for patients with high blood pressure will not cause fluctuations in blood pressure. Therefore, patients can eat icing sugar appropriately. However, it is important to control the intake, minimize the intake of sugar and salt, and also pay close attention to the changes in blood pressure, go to the cardiovascular internal medicine department of the hospital if necessary, and give the appropriate medication under the guidance of the doctor to control the blood pressure within the normal range.