Small Intestine Bowel Overgrowth

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If eating a high fibre diet makes your constipation worse it could be that you have Small Intestine Bowel Overgrowth (SIBO), this occurs when bacteria which should be located in the large intestine is present in large numbers in the small intestine. Eating fibre can feed this bacteria and make your bloating and constipation worse. For some people with SIBO a high fibre diet causes diarrhoea. If you are worried that you have SIBO find a nutritional practitioner who can authorise a lactulose breath test. If the result is positive the condition can be treated with diet and herbal antibiotics.

What You'll Need

  • if you test positive it might be worth trying Berberine which acts as a herbal antibiotic to rid the small intestine of unwanted bacteria

What You'll Do

  • SIBO is worsened on a high fibre diet so if you have this condition you should try avoiding wholegrains and legumes and limit fruit and vegetables. Enjoy meat, fish and eggs, nuts, coconut or almond milk and coconut or almond yoghurt and a limited amount of lightly cooked vegetables. This is not a long term diet but should be maintained whilst you sort out your SIBO.
  • for more information refer to

Tips & Warnings

  • Best to consult a nutritional therapist before starting a SIBO diet as the diet is quite restrictive
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