The pituitary gland located at the base of the brain keeps track of the amount of thyroid hormone in the blood. It sends signals to the thyroid gland to either make more or less depending on what’s needed for optimum function. A goiter, or enlarged thyroid, can cause difficulties swallowing or breathing. A lack of iodine in the diet is the most common cause, but goiters can also result from thyroid hormone over or under production or nodules on the gland itself. Normal thyroid function is dependent on the presence of many trace elements for both the synthesis and metabolism of thyroid hormones. Thyroid-Pro is specially formulated with a blend of essential minerals to support thyroid function and help prevent iodine deficiency. In addition to providing an adaptogenic herb for stress support, Thyroid-Pro contains L-tyrosine and key cofactors necessary for the enzymatic production of the thyroid hormones, triiodothyronine(T3) and thyrozine(T4). Nutrients and herbs that support the healthy functioning of the thyroid gland Iodine naturally sourced from bladderwrack Contains important cofactors selenium, zinc and copper Dairy Free Gluten Free GMO-Free Soy Free Vegan