Daniella,

Had you stopped all B12 days before the sample was drawn that tested 2000?

rose

Well when it was 2000 I had just been taking the b complex no b12. Then that neuro said to hold off on all. Then when I saw my other new neuro I asked her if I could supplment with both b12 and b complex and she said yes. The after was on that for awhile got tested and was 1500 twice. So actually it went down with the supplment.