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Glucose Problems - Spikes - Not Diagnosed With Diabetes

KodaiWand

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I read this forum for a while, familiarising myself with usual causes of development of diabetes. I would like to leave my story here, and link to a user post here in the past, that sounds exactly like me.

Essentially, I went on keto to lose weight, then one day decided to snack on carbs and got really sick, seemed to pee more than I used to and went to a doctor thinking it is diabetes. I stayed on keto the whole period I am to describe. I was given a glucose tolerance test that I failed, and hence was sent to an endo. He repeated the test and I failed it. He tested for antibodies (4 of them) them being negative. He then discharged me as not having diabetes and told me to start eating carbs again because my pancreas is asleep from all the keto diet, hence my failures on GTT. I did. But I observed my BGs and how I feel for 2.5 weeks, and they shown large spikes (up to 12 mmol/l) and then it took 3-4 hours to get them down to normal range.

Here is a post from a person who had similar situation: Google "No antibodies - but low (fasting) c-peptide and insulin reddit" first link.

My c-peptide was a bit below normal range with fasting glucose of 4.5 mmol/l which I was told means nothing. Can someone share an opinion why, if I do not have diabetes, experience large glucose spikes after prolonged keto diet? They make me feel awful and I am forced to continue eating low carb with normal BMI. What is the science behind this? Or did endo just dismiss me without good reason?
 
@KodaiWand welcome to the forum.

If you are on a keto diet, your body is not used to dealing with a quantity of carbs, irrespective of whether you are a diagnosed diabetic or not. Before having a OGTT it is important to eat carbs for a number of days, so that your body is ready to deal with the glucose, otherwise, as you have seen, you will "fail".

What had you eaten before you had the large spikes of up to 12mmol/l? Was this the effect of a sudden input of carbs, which your body wasn't expecting?
What do you eat? What are your normal meals? Perhaps you are unwittingly eating something with hidden sugars.
Sally
 
@KodaiWand welcome to the forum.

If you are on a keto diet, your body is not used to dealing with a quantity of carbs, irrespective of whether you are a diagnosed diabetic or not. Before having a OGTT it is important to eat carbs for a number of days, so that your body is ready to deal with the glucose, otherwise, as you have seen, you will "fail".

What had you eaten before you had the large spikes of up to 12mmol/l? Was this the effect of a sudden input of carbs, which your body wasn't expecting?
What do you eat? What are your normal meals? Perhaps you are unwittingly eating something with hidden sugars.
Sally

True, but I tried getting back to normal eating and did not succeed for two weeks. It is when I eat lots of carbs such as rice. My normal meals are low carb vegetables, meat, and healthy fats.
 
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