Thyroid

The thyroid is responsible for controlling body functions such as cell metabolism, basal metabolic rate, heartbeat, growth and brain development via a complex hormonal regulatory circuit. The synthesis of the thyroid hormones T3 and T4, which are formed from the amino acid L-tyrosine and iodine, is crucial for this. The thyroid gland has the highest selenium content of all organs. Selenium is a cofactor of numerous enzymes and contributes to the protection of cells against oxidative stress.