Eating buckwheat steamed bread is helpful in controlling blood sugar. Buckwheat buns GI value of 66.7, while the white bread GI value of 88.1, buckwheat buns compared to white bread to raise blood sugar rate is slower, so that the peak of blood sugar rise is lower. Therefore, for diabetic patients, eat some buckwheat buns in moderation, on the control of blood sugar is helpful. However, diabetic patients eating buckwheat buns daily need to be limited, should be based on their height, weight calculation of their daily calorie requirements, and then in accordance with the caloric restriction of the amount of steamed bread, blood sugar control at a stable level. In daily life, the most effective way to control blood sugar is to follow the doctor’s instructions to regulate the injection of insulin or oral treatment with glucose-lowering drugs such as acarbose, metformin, and choose a low-salt, low-fat, low-sugar diet, with regular aerobic exercise, which will help to control blood sugar.