Diabetes can eat sweet corn, but to eat in moderation. Sweet corn is rich in dietary fiber, folic acid, vitamin C, phosphorus, potassium and other nutrients, glycemic index of 55, belonging to the middle glycemic index food; therefore, diabetic patients can eat sweet corn, not only can play a supplemental nutrient elements, but also will not cause greater fluctuations in blood sugar. Although sweet corn has a certain nutritional value, but diabetic patients should not eat a large amount of sweet corn at once, so as not to cause indigestion and other symptoms; and, in the way of cooking sweet corn try to boiled mainly to help control blood sugar. Patients diagnosed with diabetes should actively cooperate with their doctors and maintain a low-salt, low-fat and low-sugar diet.