Iodine is a component of important thyrotropic hormones. A deficiency of iodine manifests itself in an enlarged thyroid (struma). Older people are paticulary affected by this.

 

Iodine is also involved in the sustainment of the connective tissue. This is above all important in pregnancy: A heavy iodine deficiency may lead to cretinism in the unborn child. Sufficient selenium helps to metabolize iodine to thyrotropic hormones. But also vitamin A is needed that this metabolization is working correctly. If we eat much cabbage, we should know that this hinders the absorption of iodine. Also peanuts, manioc and soy beans affect the iodine-activity in the thyroid. Too much iodine indeed may poison the thyroid. This may lead to swellings and to the generation of cancer cells. So before high doses of iodine are taken, a medical examination should be made.