I would like to know more as well. Ray Peat writes about a correlation between supplemental iodine during pregnancy and childhood leukemia. So I never took any during this pregnancy (I’m 39 weeks) my hemoglobin was ok but I do seem to have some symptoms of anemia. I think it’s good to remember that low hemoglobin doesn’t always mean that it is iron deficiency. Could be b12 or copper. Do you know what your MCV was?
Though a ferritin of 9 is quite low…