Walnuts contain a lot of iodine, but it works through the whole bunch of ingredients in it ). I really recommend it, as today we all are surrounded by the plastic, which evaporates chlorine, a diatomic halogen alike iodine and it easily substitutes the latter if we are in deficiency
I bought it as a supplemental internals anti-parasitic control. And the culprits are either single-cell organisms known as protozoa, or worms and larvae generally known as helminths. Be cautious if you have kidney or livers problems, or if you're pregnant. This is a brand I trust.