Ocean derived Iodine has all the pollution the ocean has and that means the botton feeding creatures that many people will swell up on and some even die when they consume such very toxic substances. Besides that, some people will just plain die when they take the wrong Iodine or over dose. Side effects of Lugol'sIodine is shrunken testicals and becoming sterile.
True Iodine, safe Iodine in my opinion must come from the tree. The tree roots filters out todays polution and God made a tree to create Iodine for some purpose and I suggest person was man, because man is the only creature with the hands and wisdom to know this.
Taking iodines sold commercially is NO DIFFERANT than taking MEDICINES; of which all have side effects.