Does biotin alter blood test results? Biotin in blood or other samples taken from patients who are ingesting high levels of biotin in dietary supplements can cause clinically significant incorrect lab test results.
Can biotin skew lab results? Biotin also known as vitamin B7, in high doses, can interfere with accurate results of common lab tests, warns the FDA. Biotin is added to many dietary supplements, and has been found to skew lab test results, including tests used by ER doctors to diagnose heart attacks. The problem has led to at least one death.
How much biotin interfere with lab tests? Individuals who regularly take more than 5,000 mcg of biotin per day may have an excess amount in their blood, which can interfere with some types of laboratory tests called immunoassays. This is because some immunoassays use biotin as part of the reagent mixture in the testing method.