Question: what is the difference between t3 and t4 thyroid?
Answer: T3 and T4 are important hormones that are produced by thyroid. The gland uses iodine from the foods to make triiodothyronine (T3) and thyroxine (T4). T3 denotes the active thyroid hormone whereas the T4 denotes the precursor of the thyroid hormone produced by the thyroid gland.