Compare the best gut health tests available in United Kingdom. 52 tests reviewed.
Cheap niche marker, but one of Selph's slowest tests
A single stool marker (faecal elastase) that checks how well the pancreas is releasing digestive enzymes, for people with chronic diarrhoea, weight loss or pale, greasy stools.
At-home SIBO breath test with no market benchmark yet
An at-home breath test that measures hydrogen and methane gas to help assess the likelihood of small intestinal bacterial overgrowth (SIBO), often linked to IBS-type symptoms.
Most biomarkers of any gut health test we track
A stool test measuring 58 markers across gut bacteria, archaea, fungi and parasites, framed by the provider around gut-thyroid research; suited to those wanting an in-depth microbiome profile with a thyroid-related angle.
Broad pathogen panel priced near the market median
A 24-marker stool test covering a wide panel of bacterial, viral and parasitic gut pathogens by PCR, plus microscopy for ova, cysts and parasites, for people investigating persistent gut symptoms.
Cheapest coeliac screen in the comparison group
A rapid at-home finger-prick blood test for tTG-IgA antibodies, a marker commonly used to help assess whether ongoing gluten-related symptoms warrant further investigation.
Cheapest bowel screening test in its group
A single-marker lateral flow test that checks a stool sample for non-visible (occult) blood, giving a fast indication of possible bowel health issues. Suits adults wanting a quick at-home check rather than a lab-processed result.
Undercuts every H. pylori test we track
A rapid stool test screening for H. pylori, a bacteria linked to stomach ulcers, giving a result in minutes. Suits anyone with symptoms like heartburn, acid reflux or stomach pain who wants a quick first check.
Pancreatic enzyme test priced well below category median
This at-home stool test measures faecal elastase, an enzyme level used to assess how well the pancreas produces digestive enzymes. It suits people being investigated for possible pancreatic insufficiency alongside advice from a GP.
Costs 62% more than the typical gut-health test
A breath test measuring hydrogen and methane after drinking a lactulose solution, used to help assess small intestinal bacterial overgrowth (SIBO). Suited to people with ongoing unexplained bloating, diarrhoea or constipation.
One of the cheapest coeliac screening tests we compare
A blood test that measures tissue transglutaminase antibodies (tTG), used to screen for coeliac disease, an autoimmune reaction to gluten. It suits people with digestive symptoms who want an initial screen before seeing a GP.
At-home calprotectin test priced in line with the category
An at-home stool test for faecal calprotectin, a protein used to help distinguish bowel inflammation linked to IBD from irritable bowel syndrome (IBS).
Deep 33-marker oral microbiome test, priced above peers
This saliva test analyses the bacteria living in your mouth, covering 33 markers of oral microbiome balance. It suits people interested in oral and general health via their microbiome rather than blood-based screening.
