SIBO (Small Intestinal Bacterial Overgrowth), is an imbalance in the microbiota of the small intestine. Normally, the small intestine contains fewer bacteria than the colon, but when bacteria multiply abnormally in the small intestine, it can cause a range of digestive symptoms and even affect other parts of the body.

Possible symptoms of SIBO:

Symptoms of SIBO can vary from person to person, but they often include digestive issues such as bloating, acid reflux, gas, abdominal pain, diarrhea, and/or constipation. Aside from gastrointestinal symptoms, SIBO can also lead to persistent fatigue, headaches, joint pain, skin problems, and even mood disorders such as depression and anxiety. These symptoms can be intermittent or chronic and have a significant impact on quality of life.

SIBO can also lead to reduced absorption of nutrients (vitamins and minerals), intestinal hyperpermeability as well as food intolerances.

Possible causes of SIBO:

The factors that contribute to the development of SIBO are multiple. They are usually linked to slowed intestinal motility, which may be due to disorders such as chronic constipation, irritable bowel syndrome, intestinal obstructions or gastrointestinal surgeries. Stagnation of food and bacteria promotes abnormal proliferation.

Another important factor favoring the abnormal proliferation of bacteria, particularily in the first part of the small intestine, is a reduction of stomach acid, low digestive enzymes and bile. These low levels of digestive substances may be linked to stress, eating meals too quickly, prolonged use of antacids,  Helicobacter pylori infection or removal of the gallbladder for example.

Note that SIBO is present in 50 to 84% of irritable bowel syndrome (IBS) cases.

Testing for SIBO:

A breath test is usually used to detect SIBO. This test involves ingesting a solution of lactulose, an indigestible sugar, then collecting samples of your breath at regular intervals. Lactulose is fermented by bacteria in the intestine, producing gases such as hydrogen and methane. High levels of these gases in exhaled air may indicate the presence of SIBO. This test is simple, non-invasive and can be performed at home. It is available via Analogy Nutrition.

Treating SIBO:

Different strategies can be implemented, on a case-by-case basis, to eliminate SIBO. Traditionally, antibiotics are often used to kill excess bacteria. However, scientific research suggests that natural antimicrobials are as efficient as antibiotics. In addition to this, restoring the balance of the intestinal microbiota is crucial. This can be done by using specific probiotics and prebiotics. It is also essential to identify and manage the underlying causes of SIBO (motility, digestive functions, etc.), in order to prevent its recurrence. By combining these approaches, it is possible to effectively manage SIBO and regain optimal gut health.

Professional support:

SIBO is a complex disorder for which professional support is usually recommended. Feel free to contact me if you wish more information. Together we can assess whether a test is appropriate in your case. I can support you in a tailor-made program, adapted to your personal situation and your needs.