I recently had a B12 standard test and the results came as follows:
Serum B12 - 2000 ng/l ( Range 200 - 900 U )
Serum ferritin - 344 ug/l ( range is 20 - 300 U )
serum Folate - 9.7 ug/l ( range 3.1 - 20.0 U )
Haemoglobin - 131 g/l ( range 130 - 180 U )
Ten days before the test I started taking Methylcobalamin sublingual tablets of 5000mcg ( 5 tablets a day )
The GP has recommended that I continue taking the B12 tablets but my fear now is that my B12 level is rather high and symptoms still exist.
Is there anyone out there that have his/her B12 at that level, I also noted that my serum ferritin is above the range, is this an issue? as GP never commented on this at all??!!
Thanks for your advice