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What Does Biotin Do To A Thyroid Test?

How much biotin affects thyroid tests? In conclusion, the ingestion of 20 mg or more of biotin may lead to a clinically relevant thyroid assay interference. The clinicians must take this point in consideration before assessing the results of any thyroid function tests.

Should you stop taking biotin before thyroid test? In the case of Biotin, it’s a water-soluble vitamin. That means if you stop taking it a week before your blood tests, it should be out of your system, allowing an accurate result.

How much does biotin affect TSH levels? Two hours after ceasing 5 mg biotin, the levels of free T4, total T3, anti-TPO, anti-Tg, and anti-TSHR significantly increased (all P < . 001), while the level of TSH significantly decreased (P = . 005).

Related Questions

What Does Biotin Do To A Thyroid Test

Most commonly, biotin use can result in falsely high levels of T4 and T3 and falsely low levels of TSH, leading to either a wrong diagnosis of hyperthyroidism or that the thyroid hormone dose is too high.

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