A blood test combining genetic risk scores and autoantibody screening for both Type 1 diabetes and coeliac disease, for anyone wanting to check both conditions together.
4 biomarkers as listed by Randox Health.
This test combines genetic risk scoring with autoantibody testing to look at your risk of both Type 1 diabetes and coeliac disease, two autoimmune conditions the provider describes as closely linked. Autoantibodies and genetic markers are commonly used to help identify increased risk of these conditions, rather than to diagnose them outright.
With four biomarkers, it has more depth than any other test in its 11-strong coeliac comparison group, where the median is one biomarker. That depth comes at a cost: its price of £299 is far above the group median of £169, and well above Selph's four-biomarker Coeliac Disease Blood Test at £63, so it scores poorly for value for money.
Collection convenience is also low, since it needs a venous draw at a clinic and results take around 7 days. Results and follow-up score is weak because it is not doctor-reviewed as standard. Clarity and documentation score well, with a full biomarker list and turnaround clearly stated.
This suits people who specifically want to check risk for both Type 1 diabetes and coeliac disease together, for example if one condition runs in the family and you know the two are linked. If you only need a coeliac check, Selph's Coeliac Disease Blood Test covers four similar biomarkers for £63, a much lower price, and Randox's own single-marker Coeliac Disease Test is also cheaper. Speak to your GP if you have digestive symptoms rather than relying on this test alone.
A blood sample is taken by venous draw at a Randox clinic, then analysed in the lab using DNA analysis and autoantibody testing. Results are available within 7 days of the sample reaching the lab. The provider does not state that a doctor reviews the results as standard.
At £299, this is the most expensive test in the 11-strong coeliac comparison group we track, well above the £169 median, though it also carries the most biomarkers with four, covering both genetic risk and autoantibodies for two linked autoimmune conditions. Cheaper single-marker coeliac tests are available, such as Selph's for £63.
The listing publishes a detailed description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.
4 biomarkers against a median of 1 across the 11 tests in its comparison group.
Requires a venous draw at a clinic; results in around 7 days, slower than similar tests.
Results are not doctor-reviewed and no consultation is included; the provider does not describe the report format.
Trustpilot 4.6 from 29,705 reviews; accredited lab (UKAS ISO 15189 (Randox Clinical Laboratory Services, lab 9329)); CQC registered.
£299.00 against a comparison-group median of £169.00 (+77%).
Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.
This test belongs to our Coeliac test comparison group. See how it stacks up against equivalent tests from other providers.
Broad coeliac panel priced well below rivals
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3-marker coeliac panel priced below the group median
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Broad symptom screen priced above the coeliac group median
A 4-marker blood and stool panel screening for coeliac antibodies, gut inflammation and H. pylori infection, for people with IBS-type symptoms who want other common causes checked alongside a GP assessment.
Market-median price, lighter on markers than some rivals
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Cheapest coeliac screen in the comparison group
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One of the cheapest coeliac screening tests we compare
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Fastest Better2Know coeliac screen, priced above most peers
Screens for coeliac disease and gluten sensitivity from a single blood marker, with results back in two working days. Suits people who want a faster result than Better2Know's other coeliac screens.
Nearly triple the median price for one coeliac marker
Tests for a coeliac disease marker from a blood sample. Despite the name, Better2Know's own description discusses tissue transglutaminase (TTA) antibody testing rather than a distinct genetic method.
Most expensive test in its coeliac comparison group
A single-marker blood screen for coeliac disease from Better2Know, with results in around 10 working days. Suits people who want a basic check without paying for a wider panel.
Broad coeliac panel priced well below rivals
A 4-antibody blood panel used to assess for coeliac disease, covering tissue transglutaminase, endomysial and deamidated gliadin antibodies plus total IgA, for people with ongoing gut symptoms after eating gluten.
3-marker coeliac panel priced below the group median
A blood test measuring IgA and IgG antibodies used to help assess coeliac disease and gluten sensitivity, alongside tissue transglutaminase IgA. Suited to people investigating unexplained gut symptoms possibly linked to gluten.
Broad symptom screen priced above the coeliac group median
A 4-marker blood and stool panel screening for coeliac antibodies, gut inflammation and H. pylori infection, for people with IBS-type symptoms who want other common causes checked alongside a GP assessment.
Market-median price, lighter on markers than some rivals
Checks for antibodies linked to the body's immune response to gluten, plus total IgA, to help assess whether coeliac disease could be a concern. Suits people with symptoms such as bloating or fatigue who still eat gluten.
