Hi
Blood tests in March revealed that I had a low vitamin B12 level of 173 (norm 200 – 900). Blood and stool tests in April revealed that I was negative for Intrinsic Factor Ab and Parietel cell antibodies, Helicobacter pylori antigen, Salmonella, Shigella, Campylobacter and Ecoli 0157. Due to the issues with fatigue I self-prescribed an oral vitamin b12 supplement containing X50 the RDA for vitamin B12. For the first two weeks I took two tablets daily. I now take one tablet every second day. I also began taking a probiotic containing 10billion lactobacillus acidophilus and bifidobacterium lactis per capsule. By mid May by vitamin B12 level was 301.
I was wondering are there other things that can have caused this drop in Vitamin B12 levels and what other steps can I take to rectify the situation as I don’t want to continue taking such a high dose supplement.
I would be grateful for any information or advice that you can offer.
Thanking you in advance,