Lactose intolerance means that an individual cannot digest foods with lactose in them. Lactose is the sugar found in milk and foods made with milk. After eating foods with lactose in them, a person may feel sick to your stomach. When they ingest dairy products, lactose intolerant people may also experience:

• Gas
• Diarrhea
• Swelling in the stomach

Dairy products, such as cheese and milk, have lactose in them.

Diagnosis and Treatment

Doctors may do a blood, breath or stool test to find out if symptoms are due to lactose intolerance.

Lactose intolerance is not serious. Eating less food with lactose, or using pills or drops to help digestion of  lactose usually helps. People who experience lactose intolerance may need to take a calcium supplement if they don’t get enough of it when they avoid mild producs, since milk and foods made with milk are the most common source of calcium for most people.