Lactose intolerance is a condition of the digestive system in which an individual has an inability to digest lactose, the sugar found in milk. An individual affected with lactose intolerance does not produce enough of the enzyme lactase, which is needed to break down lactose. If more adults than children are diagnosed with lactose intolerance, what does this most likely suggest?
The production of lactase decreases over time. The digestion of food breaks down lactase. Lactose intolerance is an allergic reaction. Lactose intolerance is contagious.