Thyroid Health
Can Supplements Affect Thyroid Tests? Biotin, Iodine & More
Some supplements can affect your thyroid gland. Others can interfere with thyroid blood test accuracy. Biotin can cause misleading TSH, FT4 and FT3 results, while iodine-rich products like kelp and...
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Can Biotin Affect Thyroid Blood Tests? TSH, FT4 & FT3 Explained
Biotin supplements can interfere with some thyroid blood tests. This may cause a falsely low TSH and falsely high FT4 or FT3, making results look overactive when thyroid function may...
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