Sea salt does contain some natural iodine as well as other minerals. Seafood is also rich in iodine. Iodine deficiency is rife in areas of the world with no a

Sea salt does contain some natural iodine as well as other minerals. Seafood is also rich in iodine. Iodine deficiency is rife in areas of the world with no access to seafood (or sea salt). Sea salt is better than mined salt, so adding iodine to mined salt is necessary.