what's a normal blood sugar
Normal Fasting Blood Sugar Fasting blood sugar is usually measured first thing in the morning before you have eaten any food. A truly normal fasting blood sugar (which is also the blood sugar a normal person will see if they have not eaten for a few hours) is: Between 70 mg/dl (3.9 mmol/L) and 92 mg/dl (5.0 mmol/L) . This is the finding of a considerable body of research. People whose blood sugar tests at this level do not develop diabetes over the next decade or longer. Those with supposedly normal blood sugars above 92 mg/dl often do.