Blood collection at collection point
- You receive a test kit with tubes and referral letter
- Visit one of 800+ collection locations in the Netherlands
- Experienced staff professionally draw your blood
- Receive your results digitally by email
Vitamin B1 (Thiamine Diphosphate)
Active Vitamin B1; energy metabolism and neurological function.
€44.95EUR
€20.00EUR
€5.95EUR
Costs are per order
- TrustPilot 4.6/5 sterren
- No GP referral needed
- Reviewed by BIG-registered physician
- ISO 15189 Certified laboratory
- Results within 1 week
- Order today, ships today
What is Vitamin B1?
Vitamin B1, also known as thiamine, is an essential nutrient that the body uses to derive energy from food, support the health of the nervous system, and optimize cardiac function.
Why should you have Vitamin B1 tested?
Testing vitamin B1 levels is useful for individuals at risk of deficiency, such as the elderly, people with alcohol dependency, and individuals with certain medical conditions that affect nutrient absorption. It can also be beneficial for those aiming to improve their overall well-being.
What does it indicate?
The test for vitamin B1 levels helps determine whether someone has an adequate level of this nutrient for healthy bodily functions. It indicates the body's efficiency in converting food into energy, the health of the nervous system, and cardiac function.
What does a high Vitamin B1 level mean?
A high level of vitamin B1 is rare and usually indicates adequate intake through diet or supplements. It is important to find a balance, as extremely high doses can be harmful.
What does a low Vitamin B1 level mean?
A low level of vitamin B1 may indicate a deficiency, which can lead to health problems such as beriberi, Wernicke-Korsakoff syndrome, muscle weakness, and diminished cardiac function.


