Understanding SIBO: Small Intestinal Bacterial Overgrowth
- michellepick5andpr
- Jul 3
- 4 min read
Updated: Sep 8
What is SIBO?
SIBO stands for “Small Intestinal Bacterial Overgrowth.” It is estimated that between 2.5% and 22% of the population experiences this condition. Our bodies contain various types of bacteria, both good and bad. In the case of SIBO, harmful bacteria have taken up residence in the small intestine. This condition is also known as blind loop syndrome.
The presence of these harmful bacteria can disrupt your gut health. They produce gas as a byproduct of carbohydrate conversion and can deplete essential nutrients like B12, beneficial proteins, and bile salts. These nutrients are crucial for digesting fats.
What Does This Mean?
The impairment in digestion can lead to nutrient loss. This includes calcium and fat-soluble vitamins. If SIBO becomes chronic, it can result in malnutrition and deficiencies. Over time, these deficiencies may cause damage to your nervous system or bones.
Be on the Lookout
If you notice changes in your bowel movements, it could indicate SIBO. This is especially true if the changes occur consistently. For example, if you experience unusual bowel movements after eating a fatty meal, it may be a sign of SIBO.
SIBO can lead to issues with fat absorption and carbohydrate breakdown. Symptoms may include oily stools, foul-smelling feces, or floating stools. Other signs to watch for include:
Soft, loose, and watery stools
Mucus in your stools
Thin, pencil-like stools
Hard, lumpy stools
For more information, refer to SIBO: Symptoms, Diagnosis, Causes & Treatment.
Other Symptoms of SIBO May Include

Loss of appetite
Abdominal pain
Nausea
Bloating
An uncomfortable feeling of fullness after eating
Diarrhea
Unintentional weight loss
Malnutrition
For a comprehensive list, visit Everything You Need to Know About SIBO.
What Are Some Causes?
The body strives to maintain balance, or homeostasis, which includes gut flora. For harmful bacteria to thrive in the small intestine, dysfunction must occur. Possible causes include:
Low stomach acid
Motility issues (e.g., gastroparesis, hypothyroidism)
Certain medications (e.g., antibiotics, narcotics)
Structural issues (e.g., small bowel diverticulosis, obstructions)
Infections or recent surgery
Individuals with autoimmune disorders may be at higher risk for SIBO. Other conditions that increase risk include:
Diabetes
Lupus
Celiac disease
Inflammatory bowel diseases
Irritable bowel syndrome
Pancreatitis
Colon cancer
Scleroderma
Chronic renal failure
Cirrhosis of the liver
For further details, refer to SIBO: Symptoms, Diagnosis, Causes & Treatment.
SIBO and Other Gut Disorders
SIBO often coexists with other gut disorders like Crohn’s disease and irritable bowel syndrome (IBS). This is due to the imbalance in the gut microbiome. Studies suggest that approximately 78% of individuals with IBS also have SIBO. This overlap can complicate diagnosis and treatment.
Other chronic gastrointestinal issues that may coexist with SIBO include:
Irritable Bowel Syndrome (IBS)
Chronic Pancreatitis
Cystic Fibrosis
Celiac Disease
Crohn’s Disease
Diagnosis

Diagnosing SIBO can be complex due to its association with various health conditions. It is essential to consult a qualified healthcare provider. They will review your medical history and symptoms. If necessary, they may conduct tests to determine if SIBO is the cause.
One common test is a breath test. This measures methane and hydrogen levels to assess the amount of gas-producing bacteria in your gut. Depending on the results, it can help confirm the presence of SIBO. Other tests may include blood tests for deficiencies, stool tests for fat malabsorption, and imaging tests to identify structural issues in the gut.
Treatments
In traditional medicine, a course of antibiotics is often the first line of treatment for SIBO. Depending on the individual, different antibiotics or ongoing therapy may be necessary. Medications to improve gut motility might also be recommended. In some cases, surgery may be required to address structural problems.
Natural Suggestions
Dietary changes can help manage SIBO. Since SIBO bacteria thrive on certain fermentable carbohydrates, it’s advisable to avoid foods that feed these organisms. Popular dietary approaches include:
Low FODMAP Diet
Elemental Diet
Elimination Diet
Consult your healthcare provider to determine which diet is most suitable for you.
Antimicrobials
In addition to dietary changes, natural antimicrobials can help reduce SIBO bacteria. These include herbs with known antibacterial properties. Some effective options are Berberine, Oil of Oregano, and garlic.
Enzymes and Probiotics

Probiotics can help restore balance to gut flora. Common strains include Lactobacillus and Bifidobacterium. Foods like natto, kefir, and sauerkraut can also nourish beneficial gut bacteria. Enzymes assist in breaking down foods, making digestion easier, especially for fats, proteins, and carbohydrates.
For comprehensive testing of bacteria imbalances which can be a contributor or cause of many gut issues, click here
Betaine HCL
For those with low stomach acid, Betaine HCL can support digestive health. This compound, found in beets, can naturally increase stomach acid levels. Adequate stomach acid is crucial for preventing harmful bacteria from establishing themselves in the body.
Repairing the Gut Lining

Healing the gut lining is vital for preventing SIBO. A damaged gut lining can increase permeability, allowing harmful substances to enter the bloodstream. Supplements like L-Glutamine, Zinc Carnosine, Omega-3 Fatty Acids, and Deglycyrrhizinated Licorice (DGL) can help improve gut lining health.
How Long Does It Take?
Treatment duration varies based on individual circumstances and the severity of SIBO. Typically, the initial phase focuses on eliminating the bacterial overgrowth. After that, measures are taken to restore a healthy gut biome and prevent relapse. Consistency and adherence to your healthcare provider’s recommendations are crucial for maintaining a healthy gut.
Conclusion
Understanding SIBO is essential for managing gut health. By recognizing symptoms, seeking proper diagnosis, and implementing effective treatments, individuals can improve their overall well-being. Always consult with a healthcare professional before making significant changes to your health regimen.




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