What supplements affect TSH levels? A study published in 2018 in the Indian Journal of Endocrinology and Metabolism found that vitamin D supplements improved TSH levels in subjects with hypothyroidism as well as thyroid antibodies in people with autoimmune thyroiditis. You can get vitamin D from fortified milk, yogurt, and orange juice.
Can biotin cause thyroid problems? Biotin is a common component of multivitamin preparations and at high doses it has been reported to cause interference in immunoassays resulting in abnormal thyroid function tests [2].
How much biotin will affect a thyroid test? 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.
Related Questions
Can Biotin Cause Low Tsh
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.