Lactose intolerance is caused by a deficiency in lactase — the enzyme that breaks down the sugar in milk, called lactose. Common symptoms include bloating, abdominal cramps, nausea, and diarrhea. If ...

Millions of Americans can’t digest a certain sugar in milk and milk products called lactose. If you’re one of them, you have lactose intolerance. The condition isn’t harmful, but it can be ...

People develop lactose intolerance when their bodies don’t make enough of the enzyme lactase for the amount of dairy they consume, says Dr. Christopher Schmoyer, an assistant professor of ...

Lactose intolerance happens when a person’s body cannot break down the sugar in milk — known as lactose — due to low levels of the enzyme lactase. Consuming milk and dairy products can lead to ...

Lactose intolerance occurs when your body is unable to digest the sugar lactose, which is found in milk and milk products. This causes uncomfortable symptoms including gas, bloating, cramps and even ...