Gastrointestinal & Gut Health

Order certified gastrointestinal lab tests for your patients through BiomarkersLabs.com. Our GI testing range is the most comprehensive available to licensed practitioners — covering the full spectrum of functional, integrative, and specialist gastrointestinal diagnostics in a single certified platform.
Our GI range includes the GI-MAP stool test by Diagnostic Solutions, Comprehensive GI Effects DNA stool analysis, GI360 Microbiome Profile, SIBO breath tests (lactulose 3-hour), leaky gut testing (lactulose/mannitol intestinal permeability), H. pylori breath test and stool profiles, calprotectin, zonulin, elastase-1, secretory IgA, organic acids testing (OAT), bacterial organic acids test (MOAT), candida profiling, comprehensive parasitology panels, Clostridium difficile testing, and bile acids assessment.
Gastrointestinal testing is one of the fastest-growing areas in functional and integrative medicine. Practitioners ordering through BiomarkersLabs.com have access to gold-standard stool analysis platforms used by leading gastroenterologists, functional medicine doctors, and naturopathic practitioners worldwide — all through a single login.
All tests are CLIA-certified for USA practitioners and IVDR-compliant for EU and UK practitioners. Results delivered exclusively to your practitioner portal within 3–14 business days depending on panel. Available in USA, EU, UK, and Canada. SIBO breath test not available in New York state.