SIBO stands for “small intestinal bacterial overgrowth.” It’s a condition where there is
an abnormal amount of bacteria in the small intestine. Normally the small intestine
has a relatively low amount of bacteria compared to the large intestine. In SIBO,
these bacteria can interfere with the normal digestion and absorption of food, leading
to a variety of symptoms.
When should testing for SIBO be considered?
Symptoms of SIBO are non-specific, encompassing abdominal pain/distention,
diarrhea, and gas.
Conditions also commonly associated with SIBO include:
● IBS
● IBD
● Celiac Disease
● Diabetes
● Fibromyalgia
● Rosacea
● Unexplained shifts in body composition
Risk factors for developing SIBO include structural/anatomic issues, motility
disorders, organ system dysfunction, elderly age, and various medications (recurrent
antibiotics, PPIs) that alter the gut microflora populations.
What is a SIBO test?
SIBO Profiles are non-invasive breath tests that capture exhaled hydrogen (H2) and
methane (CH4) gases following ingestion of a lactulose solution to measure bacterial
overgrowth of the small intestine.
What can you expect from SIBO breath testing?
In general, management of the SIBO client involves antimicrobial support, prokinetic
agents, nutrient supplementation, dietary interventions, and assessment of comorbid
conditions. It’s important to address the reasoning behind the overgrowth, not just
the overgrowth itself or it is likely it will continue to be a challenge.