What is the recommended amount of iodine for humans?
Iodine in biology
{'answer_start': array([-1]), 'answer_text': array([''], dtype=object)}
Natural sources of iodine include many marine organisms, such as kelp and certain seafood products, as well as plants grown on iodine-rich soil.[23][24] Iodized salt is fortified with iodine.[24] According to a Food Fortification Initiative 2016 report, 130 countries have mandatory iodine fortification of salt and an additional 10 have voluntary fortification.