Patients with high blood sugar can eat fresh corn, but when eating corn pay attention to the following points: First, corn belongs to the food category, so corn can be eaten as a staple food or after the calorie conversion, appropriate at the same time as eating corn, reduce the intake of other staple foods. It can help patients to control calorie intake and help patients to control their blood sugar smoothly. Second, when eating corn to choose the right way to cook, corn can be steamed, boiled, cooked can be eaten directly, but not recommended to be made into fried, fried desserts or boiled into corn porridge. Because of the high calorie content, easy to lead to significant fluctuations in blood sugar after meals, so it is not suitable for diabetic patients to eat.