- Multivitamin/mineral food supplements containing vitamin B12 may also contain analogues of vitamin B12. Herbert, V., Drivas, G., Foscaldi, R., Manusselis, C., Colman, N., Kanazawa, S., Das, K., Gelernt, M., Herzlich, B., Jennings, J. N. Engl. J. Med. (1982)