Add these foods to your daily diet: non-iodized salt decaffeinated coffee or tea (without milk or dairy - or soy-based creamers) egg whites fresh or canned fruit unsalted nuts and nut butters homemade bread or breads made without salt, dairy, and eggs popcorn with non-iodized salt oats potatoes honey maple syrup Cruciferous vegetables Cruciferous vegetables and other types may stop your thyroid from using iodine properly.