SIBO is a clinically defined digestive condition.
Resolution begins with the right diagnostics and a targeted protocol.
SIBO Treatment in St. Petersburg, FL
Many patients arrive at our clinic having spent years with an IBS label that never quite explained what they were experiencing. SIBO is a specific condition with a defined biological cause. It can be confirmed through breath testing, and clinical protocols exist that bring it to resolution. This is the work Dr. Leo focuses on at Neuroplasticity St. Pete.
What is actually happening
in the small intestine.
SIBO stands for Small Intestinal Bacterial Overgrowth. The small intestine is where most nutrient absorption takes place. Under healthy conditions it carries only a sparse population of bacteria. When bacteria from the large intestine migrate upward into the small intestine, they begin fermenting food before the body has finished absorbing it. Gas production follows, along with abdominal distention. The intestinal lining itself becomes inflamed, which compromises its barrier function over time.
Three forms of SIBO are recognized clinically, distinguished by the type of gas the overgrowth produces. The hydrogen-dominant form typically presents with looser stools and more frequent bowel movements. The methane variant, now classified separately as IMO (intestinal methanogen overgrowth), behaves quite differently; methane-producing organisms slow the gut’s contractile activity, which manifests as constipation and prolonged transit. With hydrogen sulfide SIBO, a distinctive sulfurous character is often present, accompanied by diarrhea and significant abdominal discomfort. Knowing which form is at work shapes the protocol that follows.
What permits SIBO to develop usually points toward a deeper functional issue. Impairment in the migrating motor complex, those rhythmic cleansing sweeps that move debris and bacteria through the small intestine between meals, is one common contributor. Insufficient stomach acid is another; without adequate acidity, bacteria entering the upper digestive tract are not killed off as they should be. A dysfunctional ileocecal valve permits bacteria from the colon to migrate upward. Past food poisoning episodes can leave behind autoantibodies that disrupt motility for years afterward. Identifying which contributor is at work in a given patient is what determines whether SIBO resolves and stays resolved.
The connection to the rest of the body matters. Patients with longstanding SIBO commonly develop nutrient deficiencies as the inflamed small intestine fails to absorb properly. Food sensitivities tend to multiply over time. Skin conditions appear in patterns that don’t respond to topical treatment. Mood becomes harder to regulate; cognitive clarity slips. The gut and the brain communicate continuously through the vagus nerve, so an inflamed small intestine sends inflammatory signals upward that reach the central nervous system itself. Treating SIBO well means holding this broader picture in view.
The symptoms patients
most often describe.
- Bloating that worsens through the day
- Abdominal distention or a visibly swollen belly
- Excessive gas, belching, or flatulence
- Cramping or sharp abdominal pain
- Constipation that resists usual remedies
- Loose stools or alternating bowel patterns
- Food sensitivities that have multiplied over time
- Fatigue or brain fog after meals
- Reflux and burning in the upper abdomen
- Nutrient deficiencies despite a thoughtful diet
- Skin changes including rosacea or unexplained breakouts
- Histamine reactions and unexplained rashes
How we evaluate and address
SIBO in St. Petersburg, FL.
Every patient who comes to our clinic with suspected SIBO begins with a thorough functional evaluation. The first task is confirming the diagnosis. From there we identify the gas profile and the underlying contributors, then design a protocol matched to the specific presentation. The work continues through eradication and into the longer phase of motility restoration and lasting resolution.
Comprehensive Testing and Root-Cause Identification
Dr. Leo begins SIBO evaluation with a three-gas breath test. The test measures hydrogen, methane, and hydrogen sulfide following a standardized substrate; results confirm whether SIBO is present and clarify which form is driving symptoms. The evaluation extends well beyond the breath test itself. We assess digestive enzyme function and stomach acid sufficiency. Motility patterns receive a careful look, as does the broader gut microbiome. All of this builds the picture of what allowed the overgrowth to develop in the first place.
A Targeted Antimicrobial and Restorative Protocol
Dr. Leo holds a Doctor of Acupuncture degree and a Diplomate in Oriental Medicine, with deep training in herbal antimicrobials that have a strong evidence base for SIBO eradication. The protocol is built around the specific gas profile that your breath test reveals. Acupuncture works alongside the herbal regimen, supporting intestinal motility while reducing visceral hypersensitivity. It also helps regulate the autonomic nervous system, which directly governs digestive function.
Restoring Motility and Sustaining Recovery
Recurrence is common when the conditions that allowed SIBO to develop are left unaddressed. Once the overgrowth has been cleared, the focus shifts toward restoring the migrating motor complex. Vagus nerve tone receives ongoing support. Nutritional and lifestyle practices that maintain a healthy small intestinal environment become part of the long arc of care. Where vagal dysregulation or upper cervical contributions to autonomic balance are part of the picture, Dr. Silver collaborates on the neurological component of care.
Common questions about SIBO treatment
in St. Petersburg.
IBS is a symptom-based diagnosis. The label gets applied when symptoms like bloating and abdominal pain cannot be explained by structural disease, particularly when bowel habits are also altered. Research has shown that a substantial proportion of IBS cases are actually undiagnosed SIBO. SIBO has a defined biological cause; a breath test can confirm its presence, and retesting after treatment provides a clear picture of resolution. For patients who have carried an IBS label for years without meaningful improvement, breath testing is often a useful first step toward clarity.
The breath test is performed at home and takes approximately three hours. After a brief preparation diet the day before, you drink a measured solution of either lactulose or glucose, then collect breath samples at regular intervals into small tubes. Samples go to a specialized lab that measures hydrogen, methane, and hydrogen sulfide levels. The pattern of gas elevation tells us whether SIBO is present. It also indicates where in the small intestine the overgrowth is concentrated and which gas predominates.
Yes, and this is one of the most important elements of SIBO care to understand. Eradicating the overgrowth is achievable in most cases. The work of sustaining that resolution requires identifying and addressing the underlying conditions that allowed it to develop. Patients with impaired motility often need prokinetic support for several months following eradication. If past food poisoning has left behind autoimmune disruption, additional layers of work may be required. The protocols Dr. Leo designs are built with long-term resolution in mind.
A typical antimicrobial phase runs roughly a month. Methane-dominant cases and stubborn presentations sometimes need longer. The full arc of care unfolds across several months. There is preparation before antimicrobial treatment begins, then the active phase that clears the overgrowth. Retesting afterward confirms clearance. Motility restoration is the longest piece of the work and extends well past the antimicrobial phase itself. Most patients feel meaningful improvement within the first several weeks of the active phase, and the work continues until the underlying terrain has been stabilized.
Diet plays a supporting role in SIBO care. A modified low-FODMAP or SIBO-specific approach during the protocol can reduce symptoms and limit the substrate available to the overgrowth. This dietary structure is held only through active treatment. Prolonged elimination diets can worsen the gut environment over time. Once the overgrowth has been cleared, dietary tolerance typically expands considerably.
A comprehensive functional evaluation is
the right place to start.
If you have been carrying chronic digestive symptoms without a clear diagnosis, a thorough functional workup will give you real information to act on. Book a consultation with Dr. Leo in St. Petersburg, and we will take the time to understand your full history and identify what is actually driving the pattern.