Hi, I've been looking into tests for Functional B12 Deficiency. I know the NHS will measure MMA, and maybe Homocysteine if you beg, but does anyone know if the NHS will measure holotranscobalamin for you, or is it considered too woo-woo or unnecessary? Anyone ever had theirs measured? If so, did you have it done on the NHS, and on what grounds?
Any insight, as usual, most gratefully accepted - I need to be armed for seeing my doc. Ta!