Hello All. I hope that someone out there can help me with interpreting the result of my 'active B12' test which I received today. I am a bit worried as it is way OVER the normal range and according to the internet this can mean all sorts of horrible things like liver cancer, hepatitis, kidney disease etc. What is not clear from what I have read is this: do these high B12 readings refer to both kinds of B12 tests - sarum and 'active'. I am quite confused. Anyway my 'active B12' result as follows:
256.0 pmol/l (25 - 165)
This follows a negative IFA test last week. My sarum B12 test indicated a level of about 2000. My main question is this: can this high active level of B12 be caused by the very high doses of sublingual B12 I have been taking for months? Or do I really have a serious liver problem? Finally, if my active B12 is that high does it mean I don't have a B12 deficiency at all? How then to explain all my classic B12 deficiency symptoms? And how is it that taking these supplements have greatly reduced these symptoms? Many thanks in advance!