Now Foods, Thyroid Energy, 180 VcapsProduct Description A Dietary Supplement Thyroid Support* Supports Healthy Thyroid Function* Supports Healthy Metabolism* Product Benefits Now Thyroid Energy is a complete nutritional supplement for the support of a healthy thyroid gland.* Now has combined Iodine and Tyrosine, the two constituents necessary for the synthesis of thyroid secretions.* The minerals Selenium, Zinc and Copper have been added as cofactors needed for normal thyroid function.*