What are considered normal blood glucose levels? 

While the ADA doesn't give specific numbers, it has set forth some parameters regarding blood sugar levels. The amount of sugar in your blood is measured in milligrams per deciliter, or mg/dL. What's considered normal depends on when you have eaten. The Virginia Mason Medical Center explains that a normal blood glucose reading for a non-diabetic is as follows: 

• ·Fasting – after fasting for eight hours, non-diabetics' blood sugar levels will fall between 70 and 99 mg/dL.
• ·After meals – two hours after eating, blood sugar levels less than 140 mg/dL is considered normal. 

Upon waking, most individuals' blood sugar levels should fall between 80 and 120 and between 100 and 140 at bedtime, William C. Shiel Jr., MD, FACP, FACR tells MedicineNet.