Are you wondering if you have SIBO (small intestinal bacterial overgrowth)? Symptoms of SIBO can overlap with symptoms of other digestive issues, making identifying it difficult.

So how can you tell if you have SIBO?

If there is bacterial overgrowth in your small intestine you will most likely have some of the following symptoms:

  • excess flatulence
  • bloating after eating
  • abdominal discomfort
  • disordered bowel movements (could be diarrhoea or constipation)
  • You may have been given a diagnosis of IBS

Many clients who test positive for SIBO notice they are unable to tolerate a number of foods. Problem foods create abdominal discomfort and flatulence and so diets become more and more limited.

People with SIBO will comment on how bloated their stomach becomes throughout the day.

Other signs of SIBO can include:

  • stools that float or are pale and greasy
  • B12 deficiency

Stools tend to show signs of steatorrhea because a stagnant or low bile flow. This contributes to the development of SIBO and affects fat absorption. B12 deficiency can develop due to a lack of stomach acid secretions which activate the absorption of B12. A lack of or low levels of stomach acid often pre-disposes someone to developing SIBO. A history of antacid use or a course of proton pump inhibitors (acid blocking medication) can lead to developing SIBO. The acidity level of the contents of the stomach determine whether bacteria can thrive in the small intestine.


For a clinical diagnosis of SIBO you can order a methane and hydrogen breath test for home use through our lab testing shop.

Author: Sarah Hanratty

Sarah is a specialist practitioner at the Brain Food Clinic. She has a degree in Nutritional Medicine and is a certified Gut and Psychology Syndrome Practitioner. Sarah helps people to overcome physical and mental health issues using bespoke nutritional protocols.

Leave a Reply

Your email address will not be published.

You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>