With women who are deficient in ferritin chronically, even when increasing iron intake, could it be an indication of SIBO or bacterial overgrowth if the bacteria is using the iron, so absorption does not take place? I have women who are hypothyroid with significantly low ferritin and can’t get ferritin up.

Dr. Amy Nett: If   a patient with a ferritin as low as 20. If there’s no iron deficiency, I don’t know that a ferritin of 20 would actually bother me. You’re saying it’s specifically for a hypothyroid case. “Learned that low ferritin is correlated with hypothyroid, so I’ve been checking ferritin only.” Interesting. I don’t know that I’m familiar with that correlation, so I’d be really curious. I don’t know if you’ve come across that study or where you found that. If you can post it on the Facebook page, that would be awesome because I’m not familiar with that correlation. You read a study that low ferritin can cause false positives on hemoglobin A1c. “I had one patient in that category. No signs other than hemoglobin A1c, so we brought up ferritin, and A1c was lowered, but mostly it’s the hypothyroid connection I wonder about.”