Lactose inonzi disaccharide inowanikwa muzvigadzirwa zvemukaka zvemammalian, zvinosanganisira molekuru imwe yeglucose uye imwe molekuru yegalactose. Icho chikamu chikuru che lactose, chikafu chikuru chevanhu uye dzimwe mhuka dzinoyamwisa panguva yehucheche. Lactose inoita mabasa akakosha mumuviri wemunhu. Ndiro rinopa simba.