The Hydrogen Breath Test is used to identify lactose intolerance. This condition can lead to symptoms that include abdominal pain, bloating, or gas. You will need to fast for a minimum of 12 hours prior to the test. You will also need to drink 12 oz of whole milk 3 hours prior to your test. Upon your arrival to the office, you will then be asked to hold your breath for 15 seconds and slowly exhale into a specialized device that calculates the amount of hydrogen in your breath. Based on the results, we will be able to determine if you are lactose intolerant.