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Iodine - the thyroid regulator

Thyrotropic hormones ...
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.
 
Cretinism ...
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.
 
Literature: Gesund durch ausreichend Vitamine, Mineralstoffe & Spurenelemente, Nährstoff-Akademie Salzburg; ISBN: 3-902472-00-6

 

DOSAGE - IODINE

RDA* 150 mcg
Nutritional/medical dosage 100 - 1000 mcg
*RDA = Recommended daily allowance  

Iodine - sources

  mcg/100g 200 mcg corresponds to:
fried herring 130,0 154 g = 1 portion
mussels 130,0 154 g = 1 portion
plaice 116,8 171 g = 1 portion
codfish 102,4 195 g = 1 portion
salad 29,8 671 g = 9 portions
broccoli 9,8 2040 g = 13 portions