Normal Blood Sugars
- A normal fasting (no food for eight hours) blood sugar level is between 70 and 99 mg/dL
- A normal blood sugar level two hours after eating is less than 140 mg/dL
Diabetes is diagnosed by any one of the following:
- Two consecutive fasting blood glucose tests that are equal to or greater than 126 mg/dL
- Any random blood glucose that is greater than 200 mg/dL
- An A1c test that is equal to or greater than 6.5 percent. A1c is an easy blood test that gives a three month average of blood sugars
- A two-hour oral glucose tolerance test with any value over 200 mg/dL
Sometimes you may have symptoms of fatigue, excessive urination or thirst, or unplanned weight loss. However, often people have no symptoms of high blood glucose and find a diabetes diagnosis surprising.