Medically reviewed by Kelly Wood, MD Key Takeaways Armour Thyroid is not FDA-approved because it was developed before the FDA was established. Armour Thyroid contains both T3 and T4 hormones, which ...

Thyroxine (T4) is the main hormone your thyroid makes. Your thyroid hormones are important because they control how your body uses energy from the food you eat. (Photo Credit: iStock/Getty Images) T4 ...

Desiccated thyroid extract (DTE), derived from crushed preparations of animal thyroid glands, is a safe and effective alternative to standard T4 therapy in hypothyroid patients, a new study finds. The ...

Medically reviewed by Kelly Wood, MDKey TakeawaysThyroid blood tests help figure out how well your thyroid gland is ...

Dear S.P.: The symptoms of low thyroid levels can be very nonspecific. Fatigue or weakness, intolerance of cold temperatures, and weight gain are common, but many conditions (anemia is a big one) can ...

Plus, you don’t need to eat much to get the perks.

Here’s the Connection Key Takeaways: Hormones like insulin, cortisol, thyroid hormones, and testosterone play a direct role ...

Dear Dr. Roach: Please explain Hashimoto’s disease. I have heard it is rare, but two colleagues have recently been diagnosed. We all work in a very high-stress field. — J.H. Dear J.H.: Hashimoto’s ...