Izongezo zesondlo sezilwanyanaziimveliso ezibonelela ngezongezo zesondlo kwizilwanyana zasekhaya, eziyilelwe ukuhlangabezana neemfuno zesondlo ezinokuthi izilwanyana zasekhaya zingabikho ekutyeni kwazo kwemihla ngemihla. Ezi mveliso zihlala ziquka iivithamini, iiminerali, i-amino acids, i-fatty acids kunye nezinye izithako, ezinokunceda izilwanyana zigcine imisebenzi ye-physiological enempilo, ukukhuthaza impilo ye-immune system, ukuphucula umgangatho woboya, ukuxhasa impilo edibeneyo, njl. avele ngohlobo lweefom zedosi yomlomo, njenge iipilisi, umgubo, iigranules, ulwelo okanye iicapsules ezithambileyo.
