Overview

Lactase is an enzyme. It breaks down lactose, a sugar in milk and milk products. Some people's bodies do not make enough lactase, so they are not able to digest milk well, which can lead to diarrhea, cramps, and gas. This is referred to as "lactose intolerance." Taking supplemental lactase can help break down lactose.

People use lactase for lactose intolerance. They also use it for excessive crying in infants (colic) and growth and development in preterm infants, but there is no good scientific evidence to support these uses.

How does it work ?

People who are lactose intolerant have trouble digesting the milk sugar lactose. Lactase is an enzyme that splits the milk sugar lactose, to produce the sugars glucose and galactose.

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