My mother has had consistently low RBC, hemoglobin and hematocrit since chemo/keytruda began. Her TSH is high as well, though T3 and T4 are in normal range. She is currently only on Keytruda (and even spacing that out more than her oncologist would like) but her numbers are not coming up (or down for TSH) at all. We had her iron/ferritin tested and they seemed fine. B12 and folate were tested and seem to be in good range. All that to say I don’t *think* she has iron-deficiency or B12-deficiency anemia at this time (though to be honest it’s more me pushing for tests than her doctors trying to be helpful right now). So I’m not sure how to get these blood numbers up into a good healthy range. I read that low RBC, hemoglobin and hematocrit probably indicates bone marrow suppression but I have no idea how to help that. She is not eating red meat because of the cancer. Are there any supplements that might help with the RBC, hemoglobin, hematocrit and/or TSH?