Hi EPhantom, your original quote was from what I posted on MyFitnessPal in the hope of someone having an insight - didn't happen ! ! But I have also posted here in the pre-diabetes section
Glucose not a problem, but carbs are !
As far as the OGTT goes - didn't get ANY spikes whatsoever, neither did I get a reactive hypo - I followed it with my meter checking every 15 mins.
Food wise - there are a number of possibilities and factors to consider.
1) Maybe the liver keeps dumping glucogen even in the presence of food.
2) Maybe one of the many signalling mechanisms that sense food and call for the production of insulin don't work.
3) Maybe because I am reasonably fit, pretty slim etc and by the time I get to do the OGTT my glucogen stores are depleated so I absorb the glucose directly to replenish the stores and feed muscles that need it, so whats left over isn't enough to raise my BGs.
4) Maybe its age, just can't process carbs - but that leaves the anomaly of how I can deal with the OGTT.
5) Maybe don't do anything at all with the glucose and just chuck it out of the system.
6) Maybe magnesium deficiency, since taking it my post-prandial numbers have dropped by 40mg/dl, so look much more 'normal' or only a little raised, but you would expect that with advancing years due to pancreatic ageing.
Basically my doctor doesn't give a stuff, not interested and wont explain whats happening - probably can't !
Like you I am small, 52kg, with hypo-thyroidism, currently 75 micrograms of levothyroxine. Maybe that is linked - who knows.
My a1c is now back in the pre-diabetic range - ****** - but maybe that is because my red blood cells are living longer. Basically because I feel great, I will assume that that is what happening. I shall continue LCHF because it works for me. Just means that I don't eat the stuff that raises my BG levels.
What I will say though that a rise from around 80 to about 180 mg/dl on one banana would not happen in a non diabetic. Just that amount of carb will leave me totally disorientated, definitely not safe to drive, shaking etc. etc. for goodness sake I used to have a 'nana sandwich when I was a full time gardener with no ill effects, so those results aren't normal. Also low C-peptide, Gad negative. So no immediate worries there. But, until it goes more pear-shaped, its not worth worrying about. No-one as yet has been able to give any answers. Just stick LCHF.