Last August, I found I was B12 deficient. I took supplements for 3 months and went from 180-something to over 1000. That should have been enough to keep me going for a long time. Last week I was tested again and it was 156. How could my body use up it's stores so quickly? I'm anemic as well (hemoglobin 9.9, ferritin 3), but my GP said they are separate issues. I'm not worried about the anemia -- I'll just have to suck it up and start guzzling the nasty Floradix -- but I do wonder why the B12 would fall like that. Any ideas?