Isephulelo esingu-35% Kuwo Wonke Ama-oda Ngekhodi Yevawusha
liz west / flickr Ukuphuza ubisi kungenye yezimpawu ezicacisayo zezilwane ezincelisayo, kepha abantu yibo kuphela izilwane eMhlabeni abazokugaya ngemuva kokuba yinsana, yize noma manje, abantu abangaphezu kwama-75% emhlabeni basabekezelela i-lactose. Ngemuva kokulunyulwa, zonke ezinye izilwane ezincelisayo, nabantu abaningi, bayayeka ukukhiqiza i-lactase, i-enzyme edingekayo yokwephula i-lactose, ushukela wobisi.
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