Lactose intolerance

Lactose intolerance means the body cannot easily digest lactose, a type of natural sugar found in milk and dairy products.

When lactose moves through the large intestine (colon) without being properly digested, it can cause uncomfortable symptoms such as gas, belly pain, and bloating. Some people with lactose intolerance cannot digest any milk products. Others can eat or drink small amounts of milk products or certain types of milk products without problems.