I had a blood test at my GP surgery in September and my results were:
Serum B12 level:
119 ng/L (150-900)
Serum Folate level:
2.3 ug/L (3.1-19.9)
I did a thriva blood test after supplementing 5mg folic acid for 4 weeks and 1000mcg Jarrows B12 for 3 weeks and my results are:
352 pmol/L (Normal 300-569)
Active B12 Level:
118 pmol/L (Normal 37.5-188)
36.6 nmol/L (Normal 8.83-40) (Optimal 40-60.8)
I’m very confused because they are in different units to the tests at my doctors! Have they improved? How do I work it out? Also I tested negative for the intrinsic factor before supplementing. Is it likely I don’t have PA as I have been absorbing from the supplements?
Any advice appreciated!!