I believe that blood fasting glucose levels are defined as follows:
- Less than 70 mg/dl (3.9 mmol/l) Low fasting blood sugar
- 70 to 99 mg/dl (3.9 to 5.5 mmol/l) Normal fasting blood sugar
- 100 to 125 mg/dl (5.6 to 6.9 mmol/l) Impaired fasting glucose (prediabetes)
- 126 mg/dl (7.0 mmol/l) and above in more than one test result
The above ranges are the ones also quoted on this site
http://www.diabetes.co.uk/diabetes_care/blood-sugar-level-ranges.html
Apparently the non diabetic target range for people without diabetes is 4-5,9 according to the International Diabetes Federation, whatever that might be.
So again I remain unconvinced that the range you quote is in any way ideal.
And for the avoidance of doubt I am not saying that being at say 3,8 if not on hypoglycemia inducing drugs is worse than being at 5,0. What I am disputing pending evidence to the contrary is that it is actually any better.
Regards
Pavlos