Several on-line resources (e.g. MedlinePlus) suggest:
Normal range for non-diabetic people who are fasting should range between: 70 and 100 milligrams per deciliter (mg/dL)
Non-diabetic people who are not fasting should have a blood glucose level below 125 mg/dL
What I am interested in however, is the coverage interval of the population that was used to determine these 'normal' values.
Also are there differences based on age, sex or any other factors.