Blood sugar range for adults

Does anybody know what the blood sugar range used to be for adults back in the 70’s? My mom keeps telling me that it the low used to be 60 and I find that hard to believe. I don’t have diabetes, but my sugar sometimes goes to 60 and I feel like crap and it’s low for my son too. I can’t see how it could be an average.

In the 70s, they didn't talk so much about low numbers like that simply because there was no home blood glucose testing. What are the odds that you would have a lab draw when you are low? I believe the 70 number has been in effect for as long as I have had diabetes (1966). I have to think that your Mom is wrong on this one.


A hemoglobin A1c test shows average blood sugar for the last 2-3 months.  Non-diabetic level is 4.0 - 5.5, in blood sugar readings that's 65-118.  

Each non-diabetic as their own "normal."  Higher for some people and lower for others.  

For a diabetic anything below 80 is usually considered a low.  60 definitely is.