Fasting blood glucose 6.22mmol / L high (normal 3.9 ~ 6.1mmol / L), but for diabetic patients generally belong to the sugar control standard. Boiled sweet corn is not high on the glycemic index and can be consumed in moderation, while roasted corn and fried corn are not recommended. Pay attention to blood glucose monitoring. Sweet corn can provide carbohydrates for the body, compared with other carbohydrate foods (such as refined white flour, white rice), its glycemic index and sugar content is not high, so high blood glucose can also be consumed in moderation as a staple food. It is also recommended to choose healthy cooking methods such as boiling and steaming. Fasting blood glucose 6.22mmol / L for the vast majority of diabetic patients belong to the blood sugar control is good, should continue to maintain. However, for normal people, it is greater than normal, it is recommended to consult a doctor in time, improve the relevant examination and cooperate with the treatment. Consult your physician for specific advice.