Hi Janis!!
<< The question is, does taking spirulina interfere with B-12 absorption from
animal sources? To be more specific, do the B-12 analogues occupy the same
receptors in the body and hence reduce the amount of useful B-12 that can be
absorbed? >>
Yes - that is precisely it. Good guess!! ;-))
Love Liza
[log in to unmask] (Liza May)