SIBO - 3 Hour
TEXAS RESIDENTS ONLY. Bloating within an hour of eating, early fullness, gas, and probiotics or fiber that make things worse. This at-home breath test measures hydrogen and methane every 20 minutes for three hours after a lactulose drink, mapping bacterial overgrowth across the entire small intestine — the three-hour version catches distal overgrowth a two-hour test misses, and the methane result separates constipation-type SIBO from the diarrhea type. The non-refundable admin fee covers test selection and order coordination; a written functional interpretation is provided to Texas residents only. Orders from outside Texas receive results without ATX review. Kit ships to your home; one-day prep diet and 12-hour fast (instructions in the kit). Results in about 1–2 weeks.
Get a free sample report
A clear, color-coded report your practitioner uses to build your plan. Every marker is grouped, flagged, and plotted against reference ranges.
Video
Collecting your sample
No clinic visit needed. Watch exactly how the at-home kit works — from unboxing to dropping off your prepaid return package.
FAQ
Answers to your questions about lab testing and services.