Vitamin B1 (Thiamine) Blood Test


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check_circle 1 test included
schedule 6 day turnaround info
invert_colors Blood - finger-prick or venous info
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Vitamin B1 (Thiamine) Blood Test

About this test

The Vitamin B1 (Thiamine) test is a nutritional-vitamin blood test. Results for the Vitamin B1 (Thiamine) test are available within 6 days.

How it works

Collect Sample

We send you an easy-to-use kit to collect your blood sample.

Post Sample

Post your sample to our lab in the prepaid envelope provided.

View Results

View results securely in your own personal dashboard.

Important Information

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.

Tests Included


Vitamin B1 is a water-soluble vitamin found mainly in beef, pork, poultry and offal. Good amounts are also found in whole-grains, legumes and nuts.

All B vitamins are crucial for the conversion of food into fuel and metabolising fats and proteins. It is important for the nervous system and brain function as well as a healthy liver, hair, skin and eyes. It also strengthens the immune system. Thiamine in particular is crucial in certain metabolic reactions and forming adenosine triphosphate which all cells in the body need.

It is fairly rare to be deficient in thiamine, however more common in people with alcoholism, Crohn disease, anorexia or those undergoing dialysis. Symptoms include headaches, nausea, fatigue, depression and abdominal discomfort. It can also make digesting carbohydrates difficult leading to a host of other health problems.

As vitamin B is water-soluble, toxicity rarely occurs and high levels in the blood will often be due to over-supplementing. However high levels of certain B vitamins may affect the liver or nervous system.

Finger-prick blood sample collection kit

We will send you your Vitamin B1 (Thiamine) Blood Test finger-prick blood sample collection kit which contains everything you need to take your blood sample in the comfort of your own home. If you are unsure about completing a finger-prick blood sample collection you will have the opportunity to select a clinic-based venous blood sample collection or choose to go our London laboratory during the checkout process.

How to collect a finger-prick blood sample

Postage & packaging

Your Vitamin B1 (Thiamine) Blood Test includes 1st class postage and packaging for you to send your blood sample directly to our laboratory for analysis. If you live in an area where you cannot rely on the post or you simply want to ensure that your sample arrives at the laboratory the following day, you may wish to send your blood sample guaranteed next day delivery for extra reassurance.

Private laboratory analysis

Your blood sample will be analysed at one of our chosen laboratories. You can be assured of fast, accurate results from one of our accredited independent providers of clinical diagnostic tests.

Interpretation of results

Our medical team will comment on out-of-range blood results and give you follow-up advice where necessary. If you need it, a PDF copy of your Vitamin B1 (Thiamine) Blood Test results can be downloaded for your doctor.

Secure online account

Once you have placed your order you can visit where you can manage your account, track your orders and view your Vitamin B1 (Thiamine) Blood Test results.

Health and Lifestyle tracker

Stay motivated by filling in your online health and lifestyle questionnaire and seeing how improvements in your lifestyle can influence your results. Your medical and family history gives us vital information when interpreting your results.

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