Is fasting blood sugar 7.2 considered high?

Normal fasting blood glucose is 3.9~6.1mmol/L. However, the patient's blood glucose is 7.2mmol/L, which is too high and requires dietary conditioning. For example, it is recommended to eat coarse grains, fruits with low sugar and fresh vegetables. However, it is not allowed to eat irritating and high sugar foods, and the number of blood glucose tests should be increased.