SIBO occurs when bacteria that normally reside in the large intestine are present in higher amounts in the small intestine, where they are not supposed to be dominant. This imbalance interferes with digestion and nutrient absorption, leading to symptoms that range from mild to disruptive. Because SIBO overlaps with other digestive concerns, getting a careful evaluation is important before starting treatment.
Symptoms commonly associated with SIBO may include bloating after meals, excess gas, stomach pain, nausea, constipation, diarrhea, or alternating bowel patterns. Some patients also report fatigue, brain fog, or difficulty tolerating certain foods. These symptoms are not unique to SIBO, which is why the doctors at The Functional MDs look at the full clinical picture rather than relying on symptoms alone.
Functional medicine aims to understand what is contributing to the overgrowth and why it may keep returning. For some patients, the issue may involve slowed motility, low stomach acid, stress-related digestive changes, or underlying conditions that affect the gut environment. For others, a history of infections, antibiotic use, food restriction, or chronic inflammation may play a role.
At The Functional MDs in Carmel, our doctors use a comprehensive, patient-centered process to evaluate digestive symptoms and recommend next steps. This may include a discussion of symptom patterns, dietary habits, prior medical history, medications, and any previous testing or treatment you have tried. The aim is to create a more complete understanding of your gut health so care is tailored to you.
Accurate assessment is an important part of SIBO care. Depending on your history and symptoms, our doctors may recommend testing that helps clarify whether bacterial overgrowth is likely and what type of pattern may be involved. Breath testing is commonly used in SIBO evaluation, and results guide a more informed treatment strategy.
Testing is not the only piece of the puzzle, however. Our team also considers whether constipation, motility impairment, dietary intolerance, or broader digestive dysfunction may be contributing to ongoing symptoms. This broader perspective helps ensure that care addresses the whole picture instead of focusing on a single lab result in isolation.
Treatment for SIBO is often personalized and may involve several supportive strategies. Since each patient’s situation is different, there is no single protocol that works for everyone. Our doctors aim to develop a plan that is practical, medically responsible, and aligned with your digestive needs and overall health goals.
Depending on your case, your care plan may include targeted therapies, dietary guidance, strategies to support motility, and recommendations that help reduce the likelihood of recurrence. We also pay attention to upstream factors that influence gut health, such as stress management, sleep quality, and nutrient status. The goal is to help you move toward a healthier digestive baseline with a plan that feels manageable.
Clinical review and symptom-based assessment
Breath testing or other appropriate evaluation
Dietary recommendations tailored to your symptoms
Support for gut motility and digestion
Targeted antimicrobial or herbal strategies when appropriate
Plans to help maintain progress after treatment
One of the most frustrating parts of SIBO is that symptoms may return if the underlying cause is not addressed. A person may feel better after treatment and still struggle later if motility remains slow, if digestive function is impaired, or if diet and lifestyle factors continue to create challenges. This is why a root-cause strategy is so helpful.
At The Functional MDs, we help patients think beyond immediate symptom reduction. By identifying what may be interfering with healthy digestion, we build a more sustainable plan. This may mean supporting bowel regularity, reassessing nutrition, or addressing additional health concerns that influence the gut environment.
Patients who have repeated bloating, unexplained digestive symptoms, or poor response to conventional approaches may benefit from a functional medicine evaluation for SIBO. People with IBS-like symptoms, food sensitivities, chronic constipation, or a history of gut disruption may also be good candidates for assessment. If you have been told your labs are normal but you still do not feel well, a deeper look may be worthwhile.
Our Carmel patients appreciate having a team that listens carefully and considers how multiple factors may be interacting. We do not rush the process, and we do not assume that every digestive complaint has the same cause. Instead, we work with you to clarify what is happening and what may help you move forward.
When you visit The Functional MDs in Carmel for SIBO-related concerns, your appointment begins with a detailed conversation about your symptoms and health history. We take time to understand when symptoms started, what makes them better or worse, and what treatments have or have not helped in the past. This helps us create a care plan that is specific to your situation.
From there, we may recommend testing, nutritional support, lifestyle changes, or other therapies based on your evaluation. We aim to make the process clear and collaborative so you know why each recommendation is being made. Our approach is designed to support your digestive health while keeping the bigger picture in view.
1. What are the most common SIBO symptoms?
2. How is SIBO diagnosed?
3. Can SIBO come back after treatment?
4. Do I need to change my diet for SIBO?
5. Is SIBO the same as IBS?
6. Why choose a functional medicine doctor for SIBO?
Chronic fatigue can significantly reduce quality of life, affecting physical stamina, cognitive function, mood, metabolism, and daily performance. At The Functional MDs, our double board-certified physicians offer a comprehensive and medically supervised approach to uncover the underlying causes of persistent fatigue and restore optimal cellular health, energy, and resilience.
Chronic fatigue occurs when the body’s energy systems become impaired due to physiological stressors such as mitochondrial dysfunction, hormonal imbalances, chronic infections, nutrient deficiencies, toxin exposure, immune dysregulation, inflammation, or metabolic disturbances.
While traditional approaches often treat fatigue as a symptom, our root-cause method looks deeper, evaluating the biological systems responsible for energy production, cellular repair, neurological signaling, and metabolic balance. This allows us to create precise, targeted plans that support true recovery.
.avif)
The Functional MDs offer physician-led functional medicine care through secure telehealth, delivering the same root-cause, personalized approach as in-office care.
Indiana - Texas - Washington - Illinois - Pennsylvania - Ohio - Michigan - Kentucky
.avif)
Our team brings a wealth of expertise in functional medicine, specializing in uncovering and addressing the underlying factors contributing to health issues.
With a focus on personalized wellness plans, informed by extensive training and experience, our is dedicated to guiding patients towards sustainable health and vitality.
We’re a team of health fanatics🧠💪, brought together by one mission; Human Well-Being.
Hormone Optimization (Thyroid, Adrenal & HRT)
Bioidentical hormone therapy for full-spectrum balance.
Mold, Heavy Metals, and Environmental Toxins
Treat hidden toxic exposures like mold and heavy metals.
Cardiometabolic Health & Cholesterol Optimization
Support heart, blood sugar, and cholesterol health.
"Your body is always speaking—symptoms are just the language. The real question is, are we listening?"
The Functional MDs
Website Disclaimer:
The contents of this website, such as text, graphics, images, and other material contained on this website (“Content”) are for informational purposes only. The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. Health-related information changes frequently and, therefore, the Content on this website may be outdated, incomplete or incorrect. We do not assume any liability for the information contained or referenced within this website and make no warranties, nor express or implied representations whatsoever regarding the accuracy, completeness, timeliness, or usefulness of any information contained or referenced in this website. Results vary from patient to patient. No prescriptions or treatments will be given unless a clinical need exists based on an examination by the physician. Any review or other material that could be regarded as a testimonial or endorsement does not constitute a guarantee, warranty, or prediction regarding the outcome of any consultation. The testimonials on this website represent the anecdotal experience of individual consumers. Use of this website is subject to our Terms & Conditions and Privacy Policy.
© 2026 The Functional MDs Clinic. All Rights Reserved.
