Hi
I have popped over from the thyroid forum and hope someone can help with my results.
November 2017 my serum B12 level was 677 range 115 - 1000
In March 2018 it had dropped to 385 same range. I supplement 2500mg. B12. daily.
My Active B12 test with Medichecks in April was 153.000 pmol/L range 25.10 - 165.00
I am trying to understand the drop from 677 to 385 when I was taking the same amount of supplement and wondered if the reason could be,
1) I went gluten free for a couple of months in September and October last year but went back to eating gluten three weeks before the blood test ( could the omission of gluten helped me absorbed the B12 better)
2) I was not taking my supplement ten days before the March test as I had ran out and was waiting for my order to arrive.
The other thing I am confused about is that in March my result was low at 385 but the Active test was top of range.
Any advice would be gratefully received.
Thank you.