Thyroid Support is a powerful thyroid hormone modulator designed to support healthy thyroid function, which in turn may have a positive effect on appetite, energy levels and weight management. Thyroid Support combines BSE-free bovine glandular thyroid with select herbs and nutrients to support optimal thyroid function.  Glandular thyroid has a proven track record of efficacy in supporting thyroid function. This formula includes the key ingredients, L-tyrosine and iodine, which aid in nourishing healthy levels of thyroxine.  L-Tyrosine and iodine also play a key role in the conversion of thyroxine to the more bioactive triiodothyronine (T4 to T3) thereby stimulating the thyroid gland. The powerful combination of herbs and minerals added to this formula further supports the needs of an underactive thyroid.