Well I have now completed my investigation into my B12.
So my results:
Serum B12: 182 ng/l (180-1000) and a few weeks later 202 ng/l,
Homocysteine: 9.9 mmol/l
MMA: 0.25 umol/l
Active B12: 30 pmol/L (25.1-165)
According to 'Could it be B12?' <200 ng/l as "severe B12 deficiency". I think the homocysteine is a little high, but both MMA and Active B12 place me in the 'borderline' category I think.
So I started on sublingual B12 (Jarrows) two days ago and have been actually taking 2x 5000mcg a day. One in the morning and one in the evening to try and build up reserves. How long do you think I should continue on this dose?
I've also started on a good wholefood multi-vitamin containing 400mcg of L-Methylfolate, the B vitamins and lots of other things. It takes two tablets to get the amounts on the label, should I just take them both at the same time, or split them apart? Does it matter taking them the same time as the B12?
Appreciate any thoughts/advice! Thanks.