Lactose Intolerance / Lactose Malabsorption

Lactose Intolerance & Lactose Malabsorption Breath Test

Our laboratory offers a simple process to gather the necessary data. After ingesting a sugar substrate, the patient provides breath samples every 20 minutes over a 3-hour time period. Samples are then mailed to the laboratory. Analysis of the samples yields data on hydrogen and/or methane production during the digestive process. Test data provides key indicators of the existence/extent of lactose intolerance/malabsorption.

How to prepare for the Lactose Intolerance Breath Testing?

There is a 24-hour preparation period before taking the test; the first 12 hours require a specific diet, and the last 12 hours require a complete fasting period; however, you may brush your teeth.

How the Lactose Intolerance Breath Testing program works?

• To order kits (physician only): call 1-800-292-9019, fax: 1-781-659-0705, or use inquiry form
• The test is performed, in the physician's office or the patient's home according to the lactose intolerance breath test instruction manual,
• Breath samples are returned to Commonwealth Laboratories Inc. in the postage paid box.
• The analytical results are faxed to the physician's office, followed by a mailed copy. See sample lactose intolerance breath test report

Download the Full Specification and Instruction Manual of the Lactose Intolerance Breath Test