????? ????? ????? ????? ??????? B12 ??? ???? ?????? ????? ? ????? ??? ???? ???????. ????? ??? ??????? ?????? ?????? ?? ????? ????? ??????? B-complex, ?????? ????? ????? ??????. ???? ????????? ???? ??? ??????? ? ??????? ????? ??????? B ?????? ?? ??????????? ??????? ???? ???? ??????? ???????. ???????? ??? ??? ????? ??????? B ??? B6 ???? ??? ??