I've been reading with interest how nitrous oxide can deactivate b12. I've also read that b12 doesn't actually get used up by the body, rather it acts as a catalyst in various processes, changing somewhat/becoming deactivated but then in healthy people is recycled/reactivated via an enetro-hepatic pathway mechanism.
So my question is. If nitrous oxide is known to deactivate b12, has anything been done to see if other things that can be taken/inhaled can reactivate/recycle inactive/unusable b12?
I'm making an educated assumption that somehow the body expels too much deactivated b12 as it has no use for it in excessive amounts.
Hope that doesn't seem too far fetched but I know we have some very well read people on here.