Over the years I have never had a B12 test over 250, was finally sent to hematologist when it got to 155. I have been folate deficient and ferritin deficient (am now on shots and had iron infusions). For the last two years I have been tested and tested for everything under the sun to find a cause for my apparent inability to absorb these nutrients (IF negative, nothing autoimmune, stomach tests all normal, etc etc)
Went to see my 95 year old grandmother for mothers day and found out she almost died in her teens from B12 deficiency and has been having shots for over 75 years... And my one uncle also... Nobody mentioned this to me!!! Also a family history of anemia.
Grandma doesn't get shots monthly, more like every couple of months. Uncle gets them monthly. They don't call it pernicious anemia. It's just B12 deficiency. I don't know that they ever looked for a reason for them.
My questions are 1) Is this genetic? I am tired of having tests. If it's genetic we can just call it and plan on having shots forever. and 2) Do they have pernicious anemia? Are there other causes of this deficiency that runs in families?
I'm a little salty I didn't know about this. I'm pretty sure this has been an issue most of my adult life and doctors were quite clueless (was walking around with 180 B12, folate of 3 and a ferritin of 11, being told it was all "normal" and I felt quite crazy!!)