The thyroid gland, a butterfly-shaped organ set at the base of the neck, plays a big role in metabolism. It produces two vital hormones: triiodothyronine (T3) and thyroxine (T4). These hormones ensure all the cells in the body function normally. They control metabolism and regulate important bodily functions like breathing, heart rate, blood pressure, cholesterol levels, body weight, and menstrual cycle. When your thyroid levels are unbalanced, your overall health is affected. Poor thyroid function is linked to several health conditions like irritable bowel syndrome, infertility, fibromyalgia, and autoimmune diseases. Many of these diseases can be prevented or eliminated by vitamins for thyroid health.read more..