Thyroid health affects many aspects of our lives: energy, metabolism, hair, skin, mood, weight maintenance, and more. But age, environmental factors, and family history can affect its performance. Thyroid Care Plus features the three most crucial thyroid nutrients for promoting optimal thyroid function and health. There are 3 Nutrients Your Thyroid Needs. Iodine includes potassium iodide, sodium iodide, and molecular iodine for thyroid hormone synthesis, which in turn supports a healthy metabolism, lustrous hair, and healthy hormone balance. L-tyrosine, an amino acid required to create the thyroid hormone thyroxine, supports mental well-being and daily energy. Selenium is a key mineral that supports the conversion of T4 into the active thyroid hormone, T3. It works with iodine and L-tyrosine to protect the thyroid from the risk of oxidative stress and damage. Selenium may reduce the risk of certain cancers. Some scientific evidence suggests that consumption of selenium may reduce the risk of certain forms of cancer. However, the FDA has determined that this evidence is limited and not conclusive.