Hi! I'm currently pondering trying to get my GP to test for antibodies for pernicious anaemia (latest blood showed B12 serumcobalamin at 248 (180-2000) ) but in the meantime, if I supplement that will change B12 levels.. But would it change the antibodies? If they are still there, surely that would give them the info needed?
Plus I am happy to say I read that oral supplements have recently been shown to be as effective as injections, yay!