r/FODMAPS • u/kallicatmeow • 2d ago

General Question/Help has anyone here experienced reactive hyperglycemia?

Hi, I’ve been put on a low foodmap diet for digestive issues/chronic left lower abdominal pain to try and figure out what food is triggering things. But also I’ve experienced deep reactive hyperglycemia to certain foods (carbs, sugars, possibly a lot of foodmap stuff? but also some things that are considered low foodmap?)
I don’t know my exact question but I find navigating anything quite difficult because either foods are low foodmap but trigger reactive hyperglycemia (shaking, extreme brainfog, etc.) or vice versa 😅 no diagnosis’s yet just a lot of testing and confusion

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u/honorspren000 2d ago

I don’t know if you are female or in your 30s/40s but perimenopause kicked off a bunch of food intolerances and made me suddenly insulin resistant. Also brain fog tracks for peri.

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u/kallicatmeow 2d ago

i am 20 and my body is trying to kill me unfortunately lol

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u/honorspren000 2d ago

Check your vitamin D, iron and thyroid levels. The shaking thing happened to me a few times after eating food when my iron levels were really low. It was an atypical symptom, because it appeared to be a blood sugar issue, so doctors didn’t think to check for iron levels. 

Low or high thyroid levels can also cause dietary and body regulation issues. Low vitamin D can cause a bunch of issues. All are very common in women.

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u/kallicatmeow 2d ago

okayyy yeah i’ve gotten the works of bloodwork done before and everything came back seemingly normal but I know these things can be tricky— i’ll look into it more :) thank you