How do you diagnose lactose intolerance?

HBT...: Hbt (hydrogen breath test) is a simple office based test to make the diagnosis of lactose intolerance. Good luck!

Avoid dairy products: The simplest way is to eliminate all diary for one week: milk, ice cream, cheese, etc. And see if the symptoms go away. Then try adding a small amount of dairy products, such as a glass of milk each day for a week. If symptoms of abdominal pain, bloating and gas return, you may have lactose intolerance. Talk to your physician, to get more suggestions to evaluate or treat your symptoms.