Ortho Thyroid™ has been carefully formulated to support thyroid and glandular activity, which are key factors to support optimal brain function and the production of energy.* With tyrosine and iodine, the two constituent nutrients of thyroid secretions, combined with specific B vitamins, zinc, selenium, and other trace minerals, this formula represents a comprehensive nutritional supplement for the support of healthy thyroid function.* Ashwagandha extract has also been included to complement the nutritional component of this formula.*