SIBO is categorized based on the type of gas produced during bacterial fermentation. Each subtype presents with different symptoms and requires a different treatment strategy.
| Type | Gas Produced | Common Symptoms | Considerations |
|---|---|---|---|
| Hydrogen-Dominant SIBO | Hydrogen | Bloating, gas, loose stools, or alternating bowel patterns | Often caused by overgrowth of fast-fermenting bacteria. |
| Methane-Dominant Overgrowth (IMO) | Methane | Chronic constipation, abdominal distention | Caused by methane-producing archaea, not technically bacteria, and typically more treatment-resistant. |
| Hydrogen Sulfide SIBO | Hydrogen Sulfide | Foul-smelling gas, diarrhea, fatigue | Difficult to detect without specialized testing; requires a nuanced treatment approach. |
Common Signs of SIBO Include:
Persistent bloating, especially after meals
Excessive gas or belching
Diarrhea, constipation, or alternating bowel habits
Nutrient deficiencies or unexplained fatigue
Headaches, brain fog, or skin issues
Accurate diagnosis is key. At Whole Gut Health, we use the latest diagnostic tools to identify the presence and type of SIBO.
Testing options may include:
Breath Testing using glucose or lactulose substrates to measure hydrogen and methane gas levels.
TrioSmart™ Testing, which includes measurement of hydrogen sulfide gas.
Functional Lab Work to assess for related nutrient deficiencies, inflammation, and digestive enzyme markers.
We select testing protocols based on your symptoms and medical history to ensure accurate and actionable results.
Our Three-Phase SIBO Protocol Includes:
1. Assessment and Root-Cause Identification
2. Targeted Intervention
3. Rebuilding and Prevention
Dr. Alexandra Shustina, NYC’s and Miami’s premier gut health specialist doctor is a board-certified gastroenterologist and internist. She is a gut health specialist with training in conventional gastroenterology and functional gut health. She is an expert in the gut microbiome and its role in health and wellness.
At Whole Gut Health, our care is led by experienced functional medicine clinicians with a deep understanding of the gut microbiome and advanced diagnostics. We combine evidence-based strategies from conventional gastroenterology with a functional and integrative lens to give you the clarity and support needed for long-term healing.
SIBO stands for Small Intestinal Bacterial Overgrowth. It occurs when there's an abnormal increase in bacteria in the small intestine, where bacterial levels should normally be much lower than in the large intestine.
SIBO is categorized based on the type of gas produced during bacterial fermentation:
Hydrogen-Dominant SIBO
Methane-Dominant Overgrowth (IMO)
Hydrogen Sulfide SIBO
Accurate diagnosis is essential for effective treatment. Testing options include:
Breath Testing
TrioSmart™ Testing
Functional Lab Work
Testing protocols are selected based on your specific symptoms and medical history to ensure accurate and actionable results.
Our comprehensive three-phase SIBO protocol includes:
Each SIBO subtype presents with different symptoms and requires a different treatment strategy. For example:
Yes, SIBO can recur if underlying causes aren't addressed. This is why our protocol includes a comprehensive rebuilding and prevention phase that focuses on:
At Whole Gut Health, we combine evidence-based strategies from conventional gastroenterology with a functional and integrative approach. Our care is led by experienced functional medicine clinicians with deep understanding of:
Dr. Alexandra Shustina is a board-certified gastroenterologist and internist who serves as NYC's and Miami's premier gut health specialist. She has training in both conventional gastroenterology and functional gut health, with particular expertise in the gut microbiome and its role in health and wellness.
The first step is scheduling a comprehensive consultation where we'll:
Contact our office to schedule your initial consultation and begin your journey toward optimal gut health.
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