A blood test checking for gastric parietal cell antibodies, often requested when vitamin B12 is low, to help look into a possible autoimmune cause. It suits people whose B12 results have already raised a question about absorption.
1 biomarker as listed by Blue Horizon Medicals.
Gastric parietal cell antibodies are antibodies made by the body's own immune system that target cells lining the stomach, cells that normally produce hydrochloric acid and intrinsic factor. According to the provider, this test is often requested alongside intrinsic factor antibodies when vitamin B12 is known or thought to be low, to help look into whether an autoimmune cause could be affecting absorption, since impaired function of these cells can eventually lead to pernicious anaemia if B12 is not supplemented.
Blue Horizon Medicals does not list group peers for this specific test, but against the 73 similarly sized vitamins and minerals tests we track more broadly, its price of £79.25 is around 16% below the £94.25 median. Unlike most of the provider's other single-marker blood tests, this one cannot be done by finger-prick at home; it requires a venous draw at a clinic or during a nurse home visit, and the turnaround is five working days rather than the one day typical of Blue Horizon's home finger-prick tests.
The listing gives a detailed explanation of what the antibody is and why it might be tested, which supports a strong clarity score, even though the requirement for a venous sample and longer turnaround bring down its convenience score. Trust signals reflect Blue Horizon Medicals' Trustpilot score of 4.2 from 395 reviews, UKAS ISO 15189 partner labs, and a trading history back to 2009. Results are reviewed by a doctor, though this is opt-in at checkout, not part of the standard order.
This suits you if a previous vitamin B12 result has come back low and you or your GP want to look into whether an autoimmune cause could be involved, often alongside an intrinsic factor antibodies test. Because it requires a venous sample at a clinic or nurse visit rather than a finger-prick, and takes five working days, it is not the quickest or most convenient of Blue Horizon's tests.
If you have not yet had B12 tested, that is usually the more logical starting point before this more specific antibody test.
This test requires a venous (vacutainer) blood draw, either at a clinic or through a nurse home visit; there is no finger-prick option. Once the sample reaches the lab, it is tested for gastric parietal cell antibodies, the results are reviewed by a doctor, and turnaround is five working days.
This test checks for gastric parietal cell antibodies, which the provider says is often requested when vitamin B12 is known or thought to be low, to help look into a possible autoimmune cause affecting the stomach cells that make intrinsic factor. At £79.25 it costs less than the £94.25 median for the 73 similarly sized vitamins and minerals tests we track. Unlike most of Blue Horizon's other single-marker tests, this one requires a venous draw at a clinic or nurse visit rather than a finger-prick, and takes five working days rather than one.
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.
1 biomarkers, placing it in the 31st percentile of vitamins tests we track.
A blood sample taken at home by a visiting nurse or phlebotomist; with a venous or clinic option as well; a home nurse visit is offered; results in around 5 days, slower than similar tests.
Results are reviewed by a doctor; the provider does not describe the report format.
Trustpilot 4.2 from 395 reviews; accredited lab (UKAS ISO 15189 partner labs); trading 17+ years.
£79.25 against a median of £94.25 for the 73 similarly sized vitamins tests we track (-16%).
Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.
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