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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.

BreathAt-home kitFasting required

Get a free sample report

View sample report

A clear, color-coded report your practitioner uses to build your plan. Every marker is grouped, flagged, and plotted against reference ranges.

Every marker grouped by health area
Color-coded flags with reference ranges on every marker
Plain-language explanation of what each result means
Reviewed with you by the practitioner who curated this store

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.