I asked my doctor about this a month ago during my last checkup. She said that non-diabetic would go up to the maybe 180-200 range maximum after a meal and be back down to 120 or under within 2 hours after a meal… She was not sure of the exact upper range, but said probably no more than 200. My speculation is that it varies somewhat…some probably seldom go over 125 and others go closer to the 200 range and back down within the 2 hours. Hummm…definition of diabetic…over 125 on two separate occasions either fasting or at least 2 hours after a meal (close anyway).
I did not leave any doubt… first test 400+, second one next day was in the 370 range (January 1998). 47 y/o type II, under control with diet, exercise and weight control. We just finished eating about an hour ago. I just my non diabetis husband, he ate sweet and sour chicken with lots of rice. His reading was 84. I had broccoli and chicken…no rice, and mine was 122. I am on metformin 500mg twice a day. He is on gout meds, and asprin. A”normal” Fasting Glucose is (typically) in the range of 80-120. If a patient is higher than that (and has no other apparent diabetic symptoms) the doc may order a “Glucose Tolerance Test” which can be 1, 2 or 3 hour (sometimes 4 or 5) procedure.
The patient is given a known amount of glucose (in the form of a coke or orange flavored syrup) and is then tested 1 hour, 2 hours then 3 hours after consumption. A “normal” person’s BG will see a slight rise after one hour, usually around 120-150, it is our policy to notify the physician if it’s over 160. The subsequent BG’s should fall slowly and return to normal range by 3 hours.