Growth hormone, also called somatotropin, is a large polypeptide hormone produced by somatotroph cells in the anterior pituitary that plays a signifi cant role in growth and metabolism. It primarily affects bone, muscle, and tissue growth.
Without sufficient growth hormone, an individual would suffer from short stature. Too much growth hormone would result in gigan tism. For normal growth to occur, the body requires energy, which growth hormone provides through protein synthesis and the breakdown of fats.