ok this is a good Q since i havent a clue regarding popcorn

if i pop the corn in an air popper and add some yeast for the B12 - is
this cooked or not?
is this a food one should eat less of or not at all?

as far as b12 goes - what sources are there on a raw food diet?
what foods provide the b-vitamines?

(i dont do raw flesh - not for me thank you very much)