Potatoes are rich in starch, as long as the intake of blood glucose will have a certain degree of elevation, but normal people eat a moderate amount of steamed or boiled potatoes generally do not cause excessive elevation of blood glucose, blood glucose is still within the normal range. Patients suffering from high blood sugar need to maintain a low-salt, low-oil diet, because eating foods high in salt, fat, and sugar may cause excessive elevation of blood sugar, which is not conducive to blood sugar control in diabetic patients. Although the blood sugar will rise to a certain extent after eating food, but if you keep a light diet the blood sugar will not rise too much; therefore, when eating potatoes, it is recommended to eat potatoes cooked by steaming and boiling, which generally will not cause excessive increase in blood sugar. Both healthy people and patients with high blood sugar are recommended to maintain a healthy diet, and patients diagnosed with high blood sugar should have better dietary control. Seek medical attention if you notice abnormalities in your blood sugar.