Iodine Occurrence
It has iodate in it. Iodide is found in seawater. Kelp has quite large amounts of iodine in it. Iodine is one of the heaviest elements needed by living things. If we do not get enough of it, we get a disease known as goitre. Most salt has iodine in it, in the form of iodide or iodate. We can also take iodine pills to make sure we get enough.