Corn can raise blood sugar, the corresponding glycemic index is medium, can be consumed in daily life, but pay attention to control the amount of food. Corn itself belongs to coarse grains, relative to rice and other staple foods, the glycemic index is on the low side, but the overall still belongs to the starchy food, for a carbohydrate, is able to raise blood sugar, belongs to the glycemic index of the food. For diabetic patients, corn is more stable than rice, steamed bread and other foods to regulate blood sugar, can be appropriate to eat. Food itself for the regulation of blood sugar is an auxiliary role, diabetic patients in their daily lives, but also regular medication for regulation, close monitoring of blood glucose changes, once found that the blood glucose is significantly abnormal, we must consult a doctor in a timely manner to observe, a clear diagnosis of standardized treatment, to avoid causing delays in the condition.