Simira Diagnostics
Biochemistry

VITAMIN B1

  • Report in 5 hrs
  • Serum sample

Price

₹8,000

  • Report in 5 hrs
  • Free home sample collection
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  • NABL certified lab

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VITAMIN B1

₹8,000

About this test

The vitamin B1 test measures thiamine, a water-soluble vitamin essential for energy metabolism, nerve function, and heart health.

Normal vitamin B1 levels (whole blood thiamine) are about 70–180 nmol/L, varying by lab.

Low vitamin B1 is common in chronic alcoholism, malnutrition, bariatric surgery, prolonged vomiting, and long-term diuretic use. Thiamine deficiency symptoms include fatigue, irritability, numbness, and muscle weakness. Severe deficiency causes beriberi, with nerve damage or heart failure, and Wernicke-Korsakoff syndrome, with confusion, memory loss, and poor coordination.

High levels are rare, because excess thiamine is excreted in urine.

Questions about this test

When should I get the VITAMIN B1 test?

You should get a vitamin B1 (thiamine) test if you have fatigue, numbness, muscle weakness, confusion, memory problems, or poor coordination. It is also recommended for people with chronic alcoholism, malnutrition, bariatric surgery, prolonged vomiting, or long-term diuretic use, and when doctors suspect beriberi or Wernicke-Korsakoff syndrome.

How should I prepare for the VITAMIN B1 test?

Fasting for 8–12 hours is usually recommended before a vitamin B1 (thiamine) test, and you may drink water during this time. Avoid alcohol for at least 24 hours before the test. Inform your doctor about any thiamine, B-complex, or multivitamin supplements, as you may need to stop them temporarily. Follow your lab's instructions.

Do I require fasting for the VITAMIN B1 test?

Yes, fasting is usually recommended for a vitamin B1 (thiamine) test. You should fast for 8–12 hours before the test, though drinking water is allowed. Avoid alcohol for 24 hours beforehand, and inform your doctor about any vitamin B1 or B-complex supplements you take, as they can affect the results.

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