Did you stop taking your B12 for a while prior to the blood tests?
btw Just as a matter of interest... in Japan the min recommended blood level of B12 is 500 pg/ml
http://www.mthfrsupport.com.au/vitam...level-set-low/
http://www.medicalcompassmd.com/b12-...ndards-may-be/
p.s. in the Vit B12 thread in the Vitamins and Supplement Forum there is this post -
http://neurotalk.psychcentral.com/post1147872-824.html
a snip from that quoted below
Quote:
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Excess B12 that is not used, or stored by the liver is excreted by the kidneys.
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Personally I'd just take less for a while Danny.