This test measures vitamin B1 (thiamine), a nutrient involved in energy production, brain function and nerve health. It suits people at higher risk of deficiency, such as those with a poor diet, alcohol dependence, or an absorption problem.
1 biomarker as listed by Medichecks.
Thiamine (vitamin B1) plays a part in how your body produces energy and supports nerve and brain function, and low levels have been linked to fatigue, nerve problems and memory issues. This test checks that one marker, which can be relevant if you have a poor diet, a history of alcohol dependence, or a condition that affects nutrient absorption.
As a single-marker test it falls in the lower half of the vitamin tests we track for clinical depth, and on price it is towards the top end: £119 against a median of £85 for similarly sized vitamin tests. There is no at-home collection option either; you need a venous blood draw at a clinic or a home nurse visit, and turnaround runs to around 7 days.
Trust signals score highly here, based on the provider's Trustpilot rating, lab accreditation and long trading history, and results and follow-up benefit from a doctor reviewing every result before release.
This is worth considering if you have a specific reason to check thiamine, such as a restrictive diet, heavy alcohol use, or a digestive condition that affects absorption, and symptoms like persistent fatigue or nerve tingling that your GP has asked you to investigate. If you want a broader nutritional check rather than one isolated marker, a multi-vitamin panel is likely to give better value.
We do not have a directly comparable single vitamin B1 test logged for this provider or others, so we cannot confirm whether a cheaper alternative exists elsewhere.
The sample is taken as a venous blood draw, either at an in-store clinic or via a home nurse visit; there is no finger-prick option for this test. The lab analyses the sample for vitamin B1, a doctor reviews the result, and your report is typically ready in around 7 days.
Priced at £119, this test checks vitamin B1 (thiamine) alone and sits well above the £85 median for similarly sized vitamin tests we track. It requires a venous draw at a clinic or home nurse visit, with results back in around 7 days. We have no comparable test logged in this group to say if a cheaper option exists.
The listing publishes a short 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 7 days, slower than similar tests.
Results are reviewed by a doctor; the provider does not describe the report format.
Trustpilot 4.5 from 2,477 reviews; accredited lab (UKAS ISO 15189 partner labs); doctor review as standard; trading 25+ years.
£119.00 against a median of £85.00 for the 73 similarly sized vitamins tests we track (+40%).
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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