Iodine is a mineral that is found in certain foods. Your body needs iodine as a key ingredient to produce thyroid hormones. If tests show that you are iodine deficient, you may need to supplement with iodine in addition to eating an iodine-rich diet. But most people — especially those with a thyroid condition — can benefit from including iodine-rich foods as part of a healthy diet.
One of the best sources of iodine in the diet is seaweed and sea vegetables, like nori, hijiki, wakame, dulse, and kelp. These sea vegetables are delicious when added to soups and salads, used to wrap sushi, or served as a stand-alone salad.
Too much iodine can worsen thyroid conditions, so don’t go overboard with the sea vegetables. Nutritionists recommend one or two servings per week.