Small Intestinal Bacterial Overgrowth (SIBO) Breath Test

Recent research shows that approximately 84% of people with irritable bowel syndrome (IBS) are positive for SIBO.  The large intestine is where the body’s beneficial bacteria resides in a normal state.  The small intestine should be relatively free of bacteria.  When bacteria overgrow in the small intestine, it becomes a site of inflammation that can lead to digestive issues & food allergies in addition to many other symptoms.  A more complete list can be found at the following link:

To complete this test, you would drink a special sugar mixture that acts as food for these bacterial colonies.  You take a breath sample every 20 minutes over a 3 hour period as this mixture moves through the small intestine.   The bacteria can produce a mixture of hydrogen and methane gas as it feeds on the mixture.  By sampling the amount of gas produced, we can determine whether there is a bacterial overgrowth present.