High thyroid levels increase the risk of sudden cardiac death. In Germany, around five out of 100 people suffer from hypothyroidism and around one person in 100 suffer from hyperthyroidism.

The thyroid produces important hormones that influence the body's metabolism. Iodine is particularly needed as a raw material for the production of the thyroid hormones triiodothyronine (T3) and thyroxine ( T4) Without iodine, hormones cannot be formed and hypothy thyroidism or hyperthy thyroidism can occur.