SIBO Breath Test - Glucose
This test is used to detect Small Intestinal Bacterial Overgrowth (SIBO). SIBO occurs when bacteria enter the small intestine at levels greater than 1000 organisms/mL. Patients with bacterial overgrowth typically develop symptoms including nausea, bloating, vomiting, diarrhea, malnutrition, weight loss, and malabsorption.
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.
Stephanie Strudley
Stephanie Strudley, CNS, is a functional medicine nutritionist and the founder of Upstream Wellness. She helps driven, health-conscious adults who've done "everything right" and still don't feel like themselves — connecting the dots between symptoms, labs, and lifestyle to uncover what's actually going on. Her approach is shaped by an unconventional path: a background in ecology and systems biology, and her own experience navigating serious, unresolved health challenges before finding root-cause care herself. She doesn't believe in one-size-fits-all protocols or quick fixes — she believes health is more like solving a puzzle than following a formula, and her role is to help clients ask better questions, interpret their own data, and build a plan that fits their unique biology and life.
My websiteFocus areas
Cardiovascular Health
Gastrointestinal Health
Metabolic Health
Women's Health
States of practice
California
Colorado
Maryland
Massachusetts
Oregon
Texas
Washington