Hydrogen Sulfide SIBO: The Third Gas That Standard Tests Missed for Decades
Hydrogen sulfide SIBO is produced by sulfate-reducing bacteria and was undetectable on older two-gas breath tests. The Trio-Smart test now measures all three gases.
Current Consensus
- Sulfate-reducing bacteria produce hydrogen sulfide gas, invisible on older two-gas breath tests.
- The Trio-Smart breath test is the first breath test that measures all three gases including hydrogen sulfide.
- H2S SIBO shows a flat-line pattern on standard tests where hydrogen stays near zero throughout.
- Hydrogen sulfide is neurotoxic and may explain disproportionate brain fog and fatigue in H2S SIBO.
Open Questions
- The optimal antimicrobial protocol specifically targeting sulfate-reducing bacteria.
- The dietary sulfur threshold that triggers symptoms in H2S SIBO patients.
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Hydrogen Sulfide SIBO Explained: The Third Type of SIBO Most People Have Never Heard Of
Hydrogen sulfide SIBO is the third form of bacterial overgrowth, caused by sulfate-reducing bacteria that produce H2S gas. Learn why standard breath tests miss it, the distinctive symptoms, and how it differs from hydrogen and methane SIBO.
Sulfate-Reducing Bacteria: The Organisms Behind Hydrogen Sulfide SIBO
Sulfate-reducing bacteria like Desulfovibrio drive hydrogen sulfide SIBO by consuming hydrogen and dietary sulfur. Learn about SRB species, their metabolism, why they thrive in certain gut environments, and how H2S causes damage.
The Trio-Smart Breath Test: Your Guide to Detecting Hydrogen Sulfide SIBO
The trio-smart breath test is the only commercial breath test that measures hydrogen sulfide alongside hydrogen and methane. Learn who should get it, how to prepare, how to interpret three-gas results, and what to do next.
Medical Disclaimer: The content in this section is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult with a qualified healthcare professional before making changes to your health regimen. GLP1Gut is a tracking tool, not a medical device.