my recent annual blood tests have shown an above range reading for B12 -only slightly at 660 with lab range of 180 -630. I also have a high reading for the liver enzyme GGT at 71 ( 6 -42 ) which I have had up and down for a number of years. neither of these readings have caused the Gp to ask me in to discuss but as I have read high B12 can be associated with liver disease and because the current high levels of GGT obvioously point to some issue with liver function albeit of a number of years standing I am ordering some private tests with Blue horizon. However I have just seen that their active B12 ,which is what Ive ordered ,says the active B12 is only 10 -30 % of the levels in blood . Im therefore wondering whether this will be of any use as it may come back within range but could the non tested levels of B12 still be high ?
thanks for any light you can shed on this