Jod und Selen – Bedeutung für die Funktion der Schilddrüse

Zusammenfassung

Die Schilddrüse ist das Organ mit dem höchsten Jod- und Selengehalt. Über mehr als 100 Jahre wurde Jodmangel als einzige Ursache der typischen Schilddrüsenerkrankungen angesehen. Hingegen hat man einen Selenmangel bisher üblicherweise nicht mit Erkrankungen der Schilddrüse in Verbindung gebracht. In den letzten Jahren hat sich aber gezeigt, dass Selenmangel wahrscheinlich entscheidender ist als Jod für die Entstehung der so häufigen Autoimmunthyreoiditis und auch der Neoplasien. Etwa 1 von 7 Menschen weltweit leiden an einem Selenmangel – ebenso viele wie an einem Jodmangel. In Deutschland und vielen europäischen Ländern ist etwa ein Drittel der Bevölkerung betroffen.

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