Lactose intolerance

Updated: 2017-06-13

Overview

Lactose intolerance is an inability to fully digest the milk sugar (lactose) in dairy products. It's usually caused by a deficiency of an enzyme in the body called lactase.

Symptoms

p>Symptoms can include abdominal cramps, bloating, and diarrhea.

Treatments

Avoidance of dairy products or use of products made for lactose-intolerant people can reduce symptoms.