What sugar level is acceptable for a diabetic?

Target blood glucose levels for diabetics who are not pregnant are 70 to 130 mg/dl before a meal and less than 180 mg/dl one to two hours after a meal, recommends the American Diabetes Association. Factors such as age and health may prompt a doctor to set an individualized range.

It is important for diabetics to monitor blood glucose levels and see their doctors if their glucose levels are too low or too high at the same time every day over a period of several days, states the American Diabetes Association. Consistent low or high levels may warrant a change in diet or medication.