Look it up. Iodine is an essential nutrient that our thyroid uses to regulate a whole host of things in the body. Eliminating it opens us up to a whole host of illnesses. There was a huge campaign in the 90s to get people to understand the value of iodine and it was put in all our salt so that people wouldn't have to think about taking it and would just get it whenever we salted our food. Iodine is so powerful it can cure people from radiation poisoning. It's anti-parasitic, anti-fungal, and anti-bacterial. It's like salting your food with chlorine dioxide or any of the other tons of antiseptic medicines they're trying to keep us from ingesting so they can sell us expensive drug treatments.
I was just at Costco and not a single kind of salt they have there says it's iodized. I thought maybe it was just the sea salt but I checked that huge bag of table salt they have and it doesn't say it's iodized either. I have that in my emergency storage and now I'm starting to think it's practically worthless. Sure, salt is good for you, but there's no question that iodized salt is WAY better for you.
Ditch your fucking sea salt. It says right on the label it doesn't contain iodide/iodine, "an essential nutrient." Get yourself regular old iodized table salt and thank me.
Sea salt does contain iodine, but because it occurs naturally, the content varies. Shellfish, seafood, and seaweed are good sources of iodine because they come from the sea. Sea salt is much better for you than iodized table salt because it provides many more minerals than just sodium chloride, plus the added iodine in table salt evaporates so all you get is sodium chloride. Iodine itself is really valuable to health, and there are way better sources than iodized salt. Seafood, shellfish, egg yolks, milk, animal products, and iodine supplements all work. It helps to avoid bread made with potassium bromate, which depletes your body's iodine by competing for iodine receptors.