"Just as copper is important for thyroid function, zinc too is needed to prevent thyroid problems. Zinc is involved in the process that converts inactive hormone T4 into active hormone T3. An excess of inactive thyroid hormones in the body can lead to an under active thyroid gland. An Italian study showed that patients suffering with hypothyroidism gained improved thyroid function by supplementing their diet with extra zinc."
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"Copper plays an important role in thyroid metabolism, especially in hormone production and absorption. Copper stimulates the production of the thyroxine hormone (T4), and prevents over-absorption of T4 in the blood cells by controlling the body’s calcium levels (Calcium is required for the stabilization of cell membranes and reduces cell permeability).
Besides this, copper is also required for the synthesis of phospholipids, (a class of fats) that are found in the myelin sheaths that insulates nerves to protect them. Phospholipids are required for the stimulation of TSH (Thyroid Stimulating Hormone). Therefore correct levels are needed to prevent thyroid problems, and can be used in the treatment of thyroid disease. "
