When should I stop taking biotin before a blood test? 8 hours
Can taking biotin affect blood tests? 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.
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.
Related Questions
Does Biotin Mess With Blood Work
IF your laboratory test is not urgent: Since biotin is relatively rapidly eliminated from the bloodstream after ingestion, it is recommended that you stop taking biotin at least 8 hours before the scheduled blood test.
Does biotin affect PSA levels?
Circulating biotin levels greater than 20 ng/mL are reported to exhibit interference in high sensitivity troponin T (hs-TnT), thyroid stimulating hormone (TSH), and in prostate specific antigen (PSA) among other assays when using our Cobas® 6000 immunoassay analyzer (Roche Diagnostics, IN, USA).
How long does biotin stay in your system after you stop taking it?
Your doctor also can advise you on whether you should stop taking your supplement ahead of an upcoming lab test. Most water-soluble vitamins flush out of your body in 24 to 48 hours, but it might take longer depending on the dose you’re taking.
Does biotin affect iron levels?
Biotin in supplements can also affect tests for heart failure, pregnancy, cancer, and iron-deficiency anemia. Experts say the problem is not new. “In the lab community, people have known about this for a long time,” said Danni Li, PhD, director of clinical chemistry at the University of Minnesota Medical Center.
Is 10000 biotin too much?
Mayo Clinic states that 10,000 mcg is a safe dose, as no adverse side effects have been noted to date. Reassuringly, even “mega doses” of 300,000 mcg found no side effects in neurological research.