Ngowuphi umhlaza onokuxhamla ekufakeni iVithamin A ekutyeni kwabo?

Amagqabantshintshi eVithamin A yamkelwa ngokubanzi ngezibonelelo zempilo kwaye isetyenziswa rhoqo ngabaguli abanomhlaza kunye nabo basengozini yemfuzo. Nangona kunjalo, ukhuseleko kunye nokusebenza kweVithamin A kwizigulana ezinomhlaza kuxhomekeke kwizinto ezininzi ezifana nesalathiso somhlaza, ichemotherapy, ...