Finally, so-called pseudovitamin-B 12 refers to B 12-like analogues that are biologically inactive in humans and yet found to be present alongside B 12 in humans, many food sources (including animals), and possibly supplements and fortified foods.
Finally, so-called pseudovitamin-B 12 refers to B 12-like analogues that are biologically inactive in humans and yet found to be present alongside B 12 in humans, Kanazawa S, et al. PMID 6846216 many food sources (including animals), and possibly supplements and fortified foods.