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Thyroid Supplements With a Kick

Posted 21 January 2014

Researchers who tested 10 popular thyroid-boosting products sold online found that nine contained the hormones thyroxine (T4) or triiodothyronine (T3), sometimes both. The amounts varied, but in some cases the recommended daily dose contained amounts of thyroid hormone as high or higher than delivered by prescription medications, according to the report, published in November in Thyroid, a scientific journal.

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