The Role of Iodine in the Human Body
Disease description:
Want to understand the role of iodine in the human body: is it only related to the thyroid gland? Does it have any effects on other organs or bodily functions? What are the consequences of iodine deficiency and excess, respectively?
Doctor's answer (1)
Dr. Yu Yongchao
Iodine is an essential trace element for the human body and plays extensive and important roles.
Iodine serves as a critical raw material for the synthesis of thyroid hormones, which play a key regulatory role in substance metabolism, including the metabolism of proteins, fats, and carbohydrates, thereby helping the body maintain energy metabolism and thermogenesis. Iodine has significant effects on promoting growth and development, especially during childhood, where iodine and thyroid hormones jointly regulate bone development, sexual development, and muscle development.
Iodine plays a particularly crucial role in brain development during the fetal and infant stages, as iodine deficiency may impair brain development and affect intellectual development. Iodine deficiency is the main cause of endemic goiter and also increases the risk of developing hypothyroidism. Ensuring adequate iodine intake through diet is therefore important for maintaining health.
Common sources of iodine include seafood, iodized salt, and certain vegetables and fruits. However, excessive iodine intake may also cause thyroid dysfunction, so maintaining a balanced iodine intake in the diet is key.
