--no matter what the doctors say.

Moreover, many people have had neurological and other systems with levels into the 600's, even 700's in some cases. It's all in how th etissues use the B12, not how much can be measured in serum (although you don't want the serum number low in any case).

You should really visit not only the Vitamin and Mineral Forum here:

http://neurotalk.psychcentral.com/sh...733#post134733

--but also Rose's wonderful B12 site (she's one of the most knowledgable people about this subject--and the knowledge is hard won; she was almost killed by B12 deficiency):

http://roseannster.googlepages.com/home