#798 Why are some people lactose intolerant?
Why are some people lactose intolerant? Because their body doesn’t make enough of an enzyme called lactase. Milk is a liquid produced in the mammary glands of most mammals. It…
Why are some people lactose intolerant? Because their body doesn’t make enough of an enzyme called lactase. Milk is a liquid produced in the mammary glands of most mammals. It…