Lactose Intolerance Topic Guide

Lactose Intolerance Lactose Intolerance: Lactose intolerance is a condition in which milk and milk products (lactose products) are not digestible. Lactose intolerance is caused by a deficiency of lactase in the intestinal wall. Lactose intolerance may appear gradually after childhood. However, the condition can be present at birth. Common symptoms of lactose intolerance include: The treatment for lactose intolerance are dietary changes to exclude products that contain lactase.


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