--- title: Does small intestinal bacterial overgrowth (SIBO) lead to severe nutrient malabsorption? description: While nutrient malabsorption can happen as a result of SIBO, it's impossible to give levels or numbers because there’s no real data on it. --- [Skip to content](https://helpcentre.healthpath.com/en/knowledge/does-sibo-lead-to-severe-nutrient-malabsorption#main-content) English Show submenu for translations ![HP-logo-414-1.png\]](https://helpcentre.healthpath.com/hs-fs/hubfs/HP-logo-414-1.png?height=40&name=HP-logo-414-1.png) - [Default HubSpot Blog](https://healthpath-1.hubspotpagebuilder.com/blog) Open main navigation Close main navigation - [Default HubSpot Blog](https://healthpath-1.hubspotpagebuilder.com/blog) - English Show submenu for translations - [Go to healthpath.com](https://healthpath.com/) [Go to healthpath.com](https://healthpath.com/) Hello. How can we help? - There are no suggestions because the search field is empty. 1. [Help centre](https://helpcentre.healthpath.com/en/knowledge?hsLang=en) 2. [Conditions and symptoms](https://helpcentre.healthpath.com/en/knowledge/conditions-and-symptoms?hsLang=en) 3. [SIBO](https://helpcentre.healthpath.com/en/knowledge/conditions-and-symptoms?hsLang=en#sibo) # Does small intestinal bacterial overgrowth (SIBO) lead to severe nutrient malabsorption? ## While nutrient malabsorption can happen as a result of SIBO, it's impossible to give levels or numbers because there’s no real data on it. It’s likely dependent on the severity of the SIBO.  Some people with SIBO have undigested food in their stool: that’s going to be a relatively severe case of nutrient malabsorption compared to someone with a mild case who is still producing adequate amounts of digestive enzymes from the pancreas. Nutrient deficiencies like vitamin B12, iron and zinc are a common consequence of having SIBO. It’s also a vicious circle: research has found that part of treating SIBO has to involve restoring nutrient status, because optimal nutrient status is—ironically— important for a healthy microbiome.  [Read SIBO symptoms: what they mean and what to do next](https://healthpath.com/sibo/sibo-symptoms/) [See our SIBO test](https://healthpath.com/products/sibo-hydrogen-breath-test-uk/) - [Before buying a test](https://helpcentre.healthpath.com/en/knowledge/before-buying-a-test?hsLang=en#main-content) - [Gut Health Tests](https://helpcentre.healthpath.com/en/knowledge/before-buying-a-test?hsLang=en#gut-health-tests) - [SIBO Breath Test](https://helpcentre.healthpath.com/en/knowledge/before-buying-a-test?hsLang=en#sibo-breath-test) - [Food Sensitivity Test](https://helpcentre.healthpath.com/en/knowledge/before-buying-a-test?hsLang=en#food-sensitivity-test) - [All Tests](https://helpcentre.healthpath.com/en/knowledge/before-buying-a-test?hsLang=en#all-tests) - [Children](https://helpcentre.healthpath.com/en/knowledge/before-buying-a-test?hsLang=en#children) - 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