Q: Context: The normal blood glucose level (tested while fasting) for non-diabetics, should be between 3.9 and 5.5 mmol / L (70 to 100 mg / dL). The mean normal blood glucose level in humans is about 5.5 mmol / L (100 mg / dL); however, this level fluctuates throughout the day. Blood sugar levels for those without diabetes and who are not fasting should be below 6.9 mmol / L (125 mg / dL). The blood glucose target range for diabetics, according to the American Diabetes Association, should be 5.0 -- 7.2 mmol / l (90 -- 130 mg / dL) before meals, and less than 10 mmol / L (180 mg / dL) after meals (as measured by a blood glucose monitor).

Question: what is the normal percentage of sugar level in the body? Let's give stream of consciousness first:
The relevant information to answer the above question is: The normal blood glucose level (tested while fasting) for non-diabetics, should be between 3.9 and 5.5 mmol / L (70 to 100 mg / dL). Therefore, the final answer is between 3.9 and 5.5 mmol / L ( 70 to 100 mg / dL ).