Ngaphambi kokuthi unqume ukuthi awubekezeleli yini i-lactoseKubalulekile ukwazi okwengeziwe ngokungalingani okuthinta izinkulungwane zabantu emhlabeni jikelele. Lokhu kuvela lapho umuntu, ngemuva kokuqeda ubisi, noma imikhiqizo ubisi njenge yogurt, ukhilimu, ushizi, ukhilimu ophehliwe, njll., unenkinga yokugaya ukudla.
Ukungakhululeki kubangelwa ukusilela ekukhiqizeni i-enzyme ebizwa ngokuthi i-lactase Idalwe emathunjini futhi inamandla okudiliza i-lactose. Abantu abaningi bangabekezelela i-lactose. Abanye bahlupheka ngalokhu inkinga ngesikhathi esisodwa bese uphulukisa, kepha abanye bahlupheka kukho konke ukuphila kwabo.
Le nkinga ayijwayelekile kakhulu ku- izingane, ngaphandle kwabantwana abazalwe ngaphambi kwesikhathi, abahlushwa yiyo amasonto ambalwa kuphela.
Ucwaningo oluningi lukhombisile lokho izimpawu avele esekhulile. Lokhu kungahle kuhlobane nohlobo lokudla olwamukelwa iminyaka eminingi.
Ngokunjalo, kukhonjisiwe ukuthi ngaphandle kokuthi le nkinga ikhona kunoma iyiphi ingxenye yomhlaba, kunemiphakathi lapho ibonakala kakhulu khona. Ngempela, amazwe ase-Asia American, aboMdabu baseMelika noma ama-Amerindians, ama-Afrika aseMelika, i-Hispanic noma amaLatinos, nabantu bomdabu waseNingizimu Europa, bathinteka kakhulu yilesi sifo.
Uma ithumbu lonakele, lingaveza okuncane i-lactase. Izizathu zokuthi kungani isiguli singase sibe namathumbu angenampilo izifo, ukulimala, ukuhlinzwa, ukugula celiac noma isifo sikaCrohn.
Izimpawu ezivamile zokungabekezelelani kwe-lactose
- Uhudo,
- ukugula,
- ubuhlungu be-cramping noma besisu
- umuzwa wokusinda nokuqunjelwa yisisu.
Lona ukungabekezeleli Kungahlolwa uma umuntu ehlushwa yimpawu eyodwa noma eziningi ngemuva kokudla imikhiqizo yobisi.