Journal Club

Efficacy of an Irritable Bowel Syndrome Diet in the Treatment of Small Intestinal Bacterial Overgrowth: A Narrative Review.

Authors

Wielgosz-Grochowska, J.P., Domanski, N., Drywień M.E.

publication

Nutrients, 2022

Background

  • SIBO (Small Intestinal Bacterial Overgrowth) is a gut condition whereby there is in imbalance in gut microbes (dysbiosis) in the small intestine, leading to symptoms of bloating, cramping, and changes in bowel habits (constipation, diarrhea).
  • So far, the main treatment for SIBO is a round or more of antibiotics, but the condition frequently recurs.
  • In many ways, SIBO is similar to irritable bowel syndrome (IBS) but there is hardly any research on SIBO compared to what there is for IBS.

Main Takeaways

  • The vast majority of the papers the authors found studied people with IBS. The findings provide good support for dietary intervention/lifestyle change for IBS. Specifically, mindful eating (especially good chewing) was associated with fewer IBS symptoms, as was probiotic supplementation with antibiotics.
  • A key finding supported diets with fiber, or even fiber supplementation, for IBS symptoms. But again, there is little research on SIBO.
  • Overall, the results provide a rationale for dietary interventions for SIBO, but possible benefits are not yet known.

Dr. Goehler's thoughts

In my opinion, it is a good idea to approach SIBO in a way similar to IBS. IBS is considered to be a Disorder of Gut-Brain Interaction, and treatments for it are more holistic/integrative that what is typically done for people diagnosed with SIBO.