That bloating that turns your flat stomach into a balloon by 3 p.m.? The gas, the cramping, the “I ate one salad and feel eight months pregnant” reality? It might not be in your head, and it might not be plain old IBS. It could be small intestinal bacterial overgrowth, and it is far more common than most people realize. Research shows that anywhere from 4 to 78 percent of people with IBS actually have SIBO hiding underneath, depending on how it is tested. Translation: a huge number of people are white-knuckling through gut misery that has a real, treatable cause.
Here at AK Twisted Wellness, we do not do hand-waving or one-size-fits-all guesses. We treat the whole person, root cause first. So let us break down what SIBO is, why it happens to both men and women, and exactly what you can do about it. No fluff. No apologies. Just real talk about your gut.
What SIBO Actually Is
Your small intestine is supposed to be relatively low on bacteria. Most of your gut bugs belong farther down, in the colon. Small intestinal bacterial overgrowth happens when bacteria that belong elsewhere set up camp in the small intestine and multiply out of control. Once they are there, they ferment the food you eat before your body can properly absorb it, and that fermentation is where the misery begins.
Clinically, SIBO is defined as an excessive bacterial count in the small intestine, typically at or above 1,000 colony-forming units per milliliter in a small bowel sample. There are also different flavors of it. Hydrogen-dominant SIBO tends to drive diarrhea, while methane-dominant overgrowth (now called IMO) is linked to constipation. Knowing which type you have matters, because it changes how you treat it.
The Symptoms You Should Not Ignore
SIBO is a master of disguise. Its symptoms overlap with IBS, food intolerances, and a dozen other conditions, which is exactly why so many people go undiagnosed for years. If several of these sound like your daily life, pay attention.
- Bloating and visible abdominal distension, often worsening as the day goes on
- Excessive gas and belching
- Diarrhea, constipation, or an annoying back-and-forth between both
- Abdominal pain or cramping
- Feeling uncomfortably full after normal-sized meals
- Unintended weight loss or difficulty absorbing nutrients
- Fatigue and brain fog tied to nutrient deficiencies
That last point deserves emphasis. When overgrown bacteria hijack your nutrients, you can end up deficient in fat-soluble vitamins, B12, and iron. This is where the whole-person picture matters, because gut dysfunction rarely stays in your gut. It shows up as low energy, poor mood, and that stubborn fatigue no amount of coffee fixes.
What Actually Causes SIBO
SIBO does not appear out of nowhere. Something disrupts the systems that normally keep your small intestine clean. The most common culprit is a slowdown in gut motility, specifically the migrating motor complex, the wave-like housekeeping action that sweeps bacteria out between meals. When that system stalls, bacteria stick around and multiply.
Common causes and risk factors include:
- A history of abdominal or gastrointestinal surgery
- Structural issues, strictures, or scar tissue in the small intestine
- Conditions like IBS, IBD, diabetes, and hypothyroidism that slow motility
- Chronic use of acid-blocking medications
- Frequent snacking that never lets the migrating motor complex run
- Hormonal shifts that affect gut function
That hormone connection is real and often overlooked. Thyroid and sex hormones influence how your gut moves, which is one reason gut trouble can flare during perimenopause, menopause, or periods of hormonal imbalance in both men and women. If your hormones are off, your gut often follows.
How SIBO Is Diagnosed and Treated
The most common way to test for SIBO is a breath test using glucose or lactulose, which measures the hydrogen and methane gases that overgrown bacteria produce. It is non-invasive and widely used, though not perfect, so results are best interpreted alongside your full symptom picture by a provider who knows what they are looking at.
When it comes to treatment, here is the honest truth: diet alone does not eradicate SIBO. It can calm symptoms, but it does not clear the overgrowth. Effective treatment usually combines a few approaches.
- Antibiotics: Rifaximin is the go-to, with eradication rates around 70 percent, and it is often paired with another agent for methane-dominant cases.
- Herbal antimicrobials and elemental diets: Evidence-supported alternatives or add-ons, especially in stubborn or recurrent cases.
- Diet strategy: A low-FODMAP or SIBO-specific approach reduces symptoms by starving the bacteria of fuel, best used as support rather than a cure.
- Meal spacing: Leaving four to five hours between meals lets your migrating motor complex do its job.
- Prokinetics: These support motility and are one of the best tools for preventing relapse.
Here is the part nobody wants to hear: SIBO loves to come back. Recurrence rates climb as high as 44 percent within nine months when the root cause is ignored. That is why chasing the underlying driver, whether motility, hormones, or nutrition, matters more than any single round of treatment.
The Whole-Person Approach at AK Twisted Wellness
This is where cookie-cutter medicine fails and personalized care wins. SIBO is not just a gut problem. It is a whole-body signal, and treating it well means looking at motility, hormones, nutrient status, stress, and lifestyle together.
That whole-person philosophy is exactly how we operate. If overgrown bacteria have left you depleted, IV therapy can help restore the vitamins and hydration your gut has been robbing you of, delivering nutrients straight into your bloodstream while your digestion recovers. If your gut trouble is tangled up with hormonal shifts, our hormone balance and weight loss programs address the metabolic and hormonal drivers that keep symptoms flaring. And because we run on telehealth, you can get real answers from wherever you are, no waiting rooms required.
Take Back Your Gut
You do not have to accept bloating, exhaustion, and a stomach that hates you as your normal. SIBO is real, it is common, and it is treatable when you actually address the root cause instead of masking symptoms. The bloating is a message. It is time to listen and act.
Ready to stop guessing and start fixing? Reach out to AK Twisted Wellness and let us build a personalized, whole-person plan that gets your gut, your energy, and your life back on track. Non-negotiable badassery starts from the inside out.
Frequently Asked Questions
Is SIBO the same thing as IBS?
No, but they overlap heavily. Many people diagnosed with IBS actually have underlying SIBO driving their symptoms. The two share signs like bloating and irregular bowel habits, so proper testing is the only way to tell them apart.
Can SIBO cause weight gain or weight loss?
It can go either way. Classic SIBO often causes weight loss and nutrient malabsorption, while methane-dominant overgrowth can slow motility and contribute to weight struggles. If you are fighting stubborn weight alongside gut issues, our weight loss programs address both the metabolic and gut-related pieces.
How long does SIBO treatment take?
Antibiotic courses like rifaximin typically run about two weeks, but full recovery depends on managing the root cause. Because recurrence is common, many people need ongoing motility support and lifestyle changes. Think of it as a process, not a single quick fix.
Will changing my diet cure SIBO on its own?
No. Diet can significantly reduce symptoms by limiting the fuel bacteria feed on, but it does not eradicate the overgrowth by itself. Diet works best as part of a fuller plan alongside targeted treatment and motility support.
Can IV therapy help if I have SIBO?
It can support recovery. SIBO often causes deficiencies in B12, iron, and fat-soluble vitamins because bacteria interfere with absorption. IV therapy delivers nutrients directly into your bloodstream, bypassing a struggling gut while you heal.
Why does my SIBO keep coming back?
Recurrence usually means the root cause was never fully addressed. Slow gut motility, hormonal imbalances, or structural issues can all keep feeding the overgrowth. Lasting results come from treating the underlying driver, not just clearing bacteria once.
References
- Mayo Clinic. (2024). Small Intestinal Bacterial Overgrowth (SIBO): Symptoms and Causes. https://www.mayoclinic.org/diseases-conditions/small-intestinal-bacterial-overgrowth/symptoms-causes/syc-20370168
- Ghoshal, U. C., et al. (2017). Small Intestinal Bacterial Overgrowth and Irritable Bowel Syndrome. PubMed. https://pubmed.ncbi.nlm.nih.gov/28274108/
- Brazilian Federation of Gastroenterology. (2025). Diagnosis and Treatment of Small Intestinal Bacterial Overgrowth: Official Position Paper. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12043196/
- MDPI Dietetics. (2026). Dietary and Medical Management of Small-Intestinal Bacterial Overgrowth: A Narrative Review. https://www.mdpi.com/2674-0311/5/1/10
- The Egyptian Journal of Internal Medicine. (2026). SIBO and Intestinal Methanogen Overgrowth: Breath Test Performance, Treatment Response, and Relapse. https://link.springer.com/article/10.1186/s43162-026-00646-7
- Feng, X., et al. (2025). Prevalence and Predictors of SIBO in Inflammatory Bowel Disease: A Meta-Analysis. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792544/
- Medscape. (2024). Bacterial Overgrowth Syndrome: Background, Pathophysiology, Epidemiology. https://emedicine.medscape.com/article/212861-overview
- Cleveland Clinic. (2023). Small Intestinal Bacterial Overgrowth (SIBO). https://my.clevelandclinic.org/health/diseases/21820-small-intestinal-bacterial-overgrowth-sibo
Disclaimer: This article is for informational purposes only and does not constitute medical, legal, or financial advice. Reading it does not create a patient-provider relationship. Always consult a qualified healthcare provider before starting any treatment or making changes to your care. For questions about AK Twisted Wellness services, visit aktw.life or call (520) 710-8805.