Tag: Biotin interference

While there is no established upper intake level for the water-soluble vitamin B7, it's a common question: how much biotin is too much per day? The primary risks from high doses don't stem from toxicity but from interference with critical laboratory tests.

According to the FDA, high-dose biotin, a component of many vitamin B complex supplements, can significantly interfere with certain lab tests. Understanding whether your vitamin B complex affects blood test results is crucial for accurate diagnoses.

According to Quest Diagnostics, high-dose biotin users should abstain for at least 72 hours before a blood draw to avoid assay interference. The washout period for biotin is a crucial preparation step to ensure the accuracy of various laboratory tests, especially for individuals taking high-potency supplements for hair, skin, and nail health. Ignoring this step can lead to falsely high or low test results, potentially resulting in misdiagnosis or unnecessary treatment.

According to the National Institutes of Health (NIH), excessive iodine intake can cause or worsen hyperthyroidism by increasing the production of thyroid hormones. For those managing an overactive thyroid, understanding **what vitamins should I avoid with hyperthyroidism** is a critical aspect of effective treatment and overall health.