In August I went went to a neurologist who tested my b12 levels because of neurological symptoms. I requested the test because in 2012 when I was trying to get pregnant a naturopathic dr found that my b12 levels were 350... at the time I had no symptoms.
I remember her talking about intrinsic factor antibodies. At the time I did not no much about that either but have since become an expert. I am almost positive she said I tested positive. She gave me sublingual b12/folate and I went on my way.
She also tested me for variants in the MtHFR gene and I tested positive for one copy of C677T and one copy of A1298C. She told me this means that I would have trouble absorbing folate/folic acid.
I just went through all my old blood work going back to 2011... there was no intrinsic factor antibody found. I found the mthfr test. I cannot reach the naturopathic dr until Monday to ask why I thought she gave the test. But I was just tested last week ( again or for the first time) and the results were negative for both intrinsic factor antibodies and parietal cell antibody.
My question is are there two intrinsic factor tests. I thought I read there is an intrinsic factor binding test. I did not have this
I am now trying to figure out why my b12 levels were low. 230
I thought I tested positive for the antibody... but apparently not. I have Hashimoto and wondering if that on its own could cause b12 deficiency ? Could it have to do with the variant on the MTHFR gene?