SIBO Breath Test Diet: What to Eat Before Testing
Follow a low-fermentation diet for 1-2 weeks, then fast 12 hours on water only. Skipping this prep can cause false-positive hydrogen or methane results.
Sibo Breath (Lab Test)
16 source-based articles maintained by the HealthRX.com Editorial Team.
16articles
3topic areas covered
Jul 14, 2025latest review
Sibo Breath (Lab Test) library
Showing 16 of 16 clinical reviews.
SIBO Breath Test Interpretation by Decade of Life
Learn how to interpret SIBO breath test results by age decade, including normal ranges, optimal thresholds, and decade-specific clinical patterns supported by primary literature.
SIBO Breath Test Medication-Driven Changes: What Drugs Alter Your Results
Certain medications falsely raise or suppress SIBO breath test hydrogen and methane readings. Learn which drugs interfere, how long to hold them, and what normal and optimal ranges look like.
SIBO Breath Test Rate-of-Change Interpretation: What Your Numbers Actually Mean
A complete clinical guide to interpreting SIBO breath test results, including hydrogen and methane rate-of-change thresholds, normal ranges, optimal values, and what rising or falling gas patterns mean for diagnosis and treatment response.
SIBO Breath Test Results: What Your Numbers Mean
Positive is H2 rise of 20 ppm or more within 90 minutes, or any CH4 reading of 10 ppm or higher. See baseline cutoffs and what your curve pattern indicates.
SIBO Breath Test, Training, and Exercise: What Athletes and Active Adults Need to Know
How physical training and exercise affect SIBO breath test results, interpretation, and small intestinal bacterial overgrowth management in active adults.
SIBO Breath Test: At-Home and Finger-Prick Options, Normal Ranges, and What Results Mean
A complete clinical guide to SIBO breath testing: at-home lactulose and glucose kits, hydrogen and methane interpretation, normal vs. Abnormal cutoffs, and how to act on your results.
SIBO Breath Test: Drugs That Distort Results, Normal Ranges, and What Your Numbers Mean
A complete clinical guide to the SIBO breath test, covering which drugs raise or lower hydrogen and methane readings, normal ranges, and how to interpret abnormal results. prepared by the HealthRX.com Editorial Team.
SIBO Breath Test: Evidence-Based Ways to Improve Your Results
Learn what your SIBO breath test results mean and how hydrogen and methane patterns guide treatment choices, including rifaximin, elemental diets, and prokinetics.
SIBO Breath Test: Normal Ranges, Optimal Targets, and What Longevity Medicine Recommends
A guide to SIBO breath test interpretation, covering hydrogen and methane cutoffs, longevity-medicine target ranges, and what to do when results fall outside normal.
SIBO Breath Test: Sex- and Cycle-Related Differences in Normal Ranges and Results
How estrogen, progesterone, and menstrual-cycle phase affect SIBO breath test hydrogen and methane readings, with evidence-based normal ranges and clinical interpretation for women and men.
SIBO Breath Test: What "Normal" Means vs. What Functional Optimal Actually Looks Like
Learn what your SIBO breath test numbers really mean, how clinical 'normal' differs from functional optimal, and what gas thresholds indicate hydrogen, methane, or hydrogen-sulfide overgrowth.
SIBO Breath Test: What This Test Actually Measures
The SIBO breath test measures hydrogen and methane gas levels in exhaled breath after a sugar substrate challenge. Learn how it works, what the results mean, and how clinicians interpret the data.
SIBO Breath Test: What Your Number Changes About Your Treatment
Your SIBO breath test result determines which antibiotic you get, how long you take it, and whether a prokinetic or diet change follows. Here is exactly how clinicians interpret hydrogen and methane values to build your treatment plan.
SIBO Breath Test: Which Tests to Order Alongside for a Complete Workup
Learn which lab tests to pair with a SIBO breath test for accurate diagnosis. Covers paired panels, interpretation, and clinical context for small intestinal bacterial overgrowth testing.
SIBO Testing: When to Order a Breath Test
SIBO testing measures hydrogen and methane after a sugar substrate. Learn when to order it, prep steps, washout times, and positive thresholds.