Vitamin B7 may skew your blood work, study warns

NCT ID NCT07302880

First seen Jan 05, 2026 · Last updated May 16, 2026 · Updated 22 times

Summary

This study looks at how taking biotin (vitamin B7) can interfere with common blood tests, especially those for thyroid antibodies. Researchers will give 24 healthy adults either 100 mg of biotin or a placebo and measure changes in their blood over several hours. The goal is to understand when and how much biotin affects lab results, helping doctors and patients avoid misdiagnosis.

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Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Department of Clinical Biochemistry, Bispebjerg University Hospital, Copenhagen

    RECRUITING

    Copenhagen, Denmark

    Contact Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

Conditions

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