This happens when your small intestine doesn’t make enough lactase, the enzyme that breaks down lactose. When you don’t make enough lactase, the lactose you eat or drink doesn’t get digested ...

People develop lactose intolerance when their bodies don’t make enough of the enzyme lactase for the amount of dairy they consume, says Dr. Christopher Schmoyer, an assistant professor of ...

The enzyme called lactase which is present in the small intestine is responsible for breaking down lactose in smaller sugar units glucose and galactose. But, when the body does not produce enough ...