Uma ingane yakho idla njalo imikhiqizo yobisi namaqanda (i-lacto-ovo-imifino), ukudla kwayo uvithamini B12 kwanele. Uma kungenjalo, isengozini enkulu yokuntuleka kwevithamini B12 etholakala kakhulu emikhiqizweni yezilwane. Amafomula e-soy (soy), okusanhlamvu okuqinisiwe, imvubelo, iziphuzo ze-soy eziqinile noma iziphuzo zamantongomane ziyimithombo kavithamini B12. Imali eyengeziwe ingase idingeke. Futhi, funa iseluleko somsebenzi wezempilo. Uma umama edla inyama edliwayo, ubisi lwebele lungase lube novithamini B12 omncane kakhulu futhi usana kufanele luthathe isithasiselo sikavithamini B12. Kunconywa ukuthi ufake okungenani ukudla okuthathu ngosuku kokudla okunothe ngovithamini B12 noma ukuthatha isithasiselo sika-5 µg kuya ku-10 µg kavithamini B12.