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Vitamin B1 (Thiamine)

NOTE: Multiple lab options. Use our Lab Locator to find closest.

Vitamin B1 (Thiamine)

Laboratory: LabCorp
Vitamin B1 (Thiamine)
Laboratory: Quest Diagnostics

The Vitamin B1 blood test measures the levels of Vitamin B1 (Thiamine) in the blood. Thiamine is a water soluble B complex vitamin. Thiamine is involved in many body functions including the nervous system, muscle function, metabolism, digestion and other biochemical processes. Because thiamine is water soluble and very little is stored in the body, depletion can occur rapidly. Thiamine deficiency (beriberi) can have serious effects ranging from nonspecific symptoms such as weight loss and confusion to life threatening conditions involving the nervous system, cardiovascular system, and/or gastrointestinal system. Thiamine metabolism and the complex roles that it plays in many of the body's systems is the focus of much ongoing research.

1. Purchase Tests

Choose the test you want (be sure to pick the laboratory you want to use).

Pay by credit card or PayPal®.

You pay directly and we do not bill your insurance.

(Note: A $10 laboratory fee is added to your total when you purchase one or more blood tests.)

2. Visit a Lab

After purchasing your testing you will receive an email with your lab requisition.  Bring this form to the laboratory.

NOTE: Be sure to visit the appropriate laboratory! 

If you choose LabCorp only visit a Labcorp location. 
If you choose Quest Diagnostics only visit a Quest location!

Find Your Lab Location.

No appointment is needed, but making one can minimize your wait time. 

If you have selected the option to have an At Home Test Kit delivered to you, you will receive your test kit in the mail within 5 to 7 business days. (Not all tests are available as At Home Test Kits.)

3. Get Results

We’ll email you when your results are ready. Sign into your account to view and download your result reports.

Sample Type
Prepare For Your Test
No special prep required.
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