KTRK-TV Houston-Stay on top of the latest breaking news, weather and traffic with the ABC13KTRK app. It's the information you need to know in an app that's fun and easy to use.
Four tests â thyroid-stimulating hormone (TSH), Free T3, Free T4 and thyroid antibodies â are required to accurately assess the function of the thyroid gland, our master gland of metabolism. An optimal TSH level should be less than 2.0, not the currently accepted 4.7 reported by most labs.
A: Usually, when taking levothyroxine the side effect is weight loss rather than weight gain. This occurs because the thyroid hormone is what regulates metabolism. If you are hypothyroid, your metabolism is slower since you don't have as much thyroid hormone in your body.: Levothyroxine is a synthetic or man-made replacement for a hormone that is normally produced by the thyroid gland to regulate the body's energy and metabolism. It is used to treat hypothyroidism (low thyroid hormone levels) and to treat and prevent goiter (an enlarged thyroid gland).