What are the side effects of too much biotin? Biotin supplements can cause problems if you take too much. Side effects can include skin rashes, digestive upset, problems with insulin release, and kidney problems. As with any supplement, the safety of long-term or high-dose use isn’t known.
Does biotin affect blood work? 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.
Should you stop taking biotin before blood work? Healthcare practitioners may advise their patients to discontinue taking biotin supplements a few days before having lab tests done. The FDA will continue to monitor reports of adverse events of biotin interference with immunoassays and will update the public if significant new information becomes available.
Related Questions
Is 10000 mcg 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.