Ngaphambi kokuba unqume ukuba awunyamezeli I-lactose, kubalulekile ukwazi okungakumbi malunga nokungalingani okuchaphazela amawaka abantu kwihlabathi liphela. Oku kubonakala xa umntu, emveni kokutya ubisi, okanye iimveliso zobisi Njengeyogathi, cream, itshizi, ukhilimu otyhidiweyo, njl., unengxaki yokugaya.
Ukuphazamiseka kubangelwa kukusilela kwimveliso ye-enzyme ebizwa ngokuba I-lactase Yenziwe emathunjini kwaye inako ukwahlula i-lactose. Abantu abaninzi banokuba banganyamezelani ne-lactose. Abanye basokola oku ingxaki ngaxa lithile kwaye uphilise, kodwa abanye bayasokola kubo bonke ubomi babo.
Le ngxaki ayiqhelekanga kakhulu kwi iintsanaNgaphandle kwabantwana abazelwe ngaphambi kwexesha abahlupheka ngenxa yeeveki ezimbalwa.
Izifundo ezininzi zibonisile ukuba iimpawu avele ebudaleni. Oku kunokuhambelana nohlobo lokutya olwamkelweyo iminyaka emininzi.
Ngokukwanjalo, kubonisiwe ukuba nangona le ngxaki ikho nakweyiphi na indawo, kukho uluntu apho lubonakala ngakumbi. Ewe kunjalo, amazwe aseAsia aseMelika, amaMelika aseMelika okanye ama-Amerindians, ama-Afrika aseMelika, I-Hispanic okanye iiLatinos, nabantu abanemvelaphi eseMazantsi Europe, Bachaphazeleka ngakumbi sesi sifo.
Ukuba ithumbu lonakele, linokuvelisa kancinci I-lactase. Izizathu zokuba isigulana sibe namathumbu angenampilo zizifo, ukwenzakala, uqhaqho, kugula celiac okanye isifo sikaCrohn.
Iimpawu eziqhelekileyo zokunyamezelana kwe-lactose
- Urhudo,
- ukugula,
- ukuxinana okanye iintlungu zesisu
- imvakalelo yobunzima kunye nokudumba kwesisu.
Lo ukunganyamezelani Inokuchongwa xa umntu esokola enye okanye ngaphezulu kweempawu emva kokutya iimveliso zobisi.