Avoid the following foods, starting when instructed before radioactive iodine test, and continue until after your radioactive iodine treatment is completed. Iodized salt, sea salt and salty foods. Salty foods like potato chips, popcorn, nuts, pretzels may have iodized salt. Avoid restaurant foods, as there is no reasonable way to determine which restaurants use iodized salt. Avoid if in doubt.
Animals secrete dietary iodine into their milk.
In addition, commercial milking machines are often cleansed with iodine solutions, as are containers and cows' teats. These are all high in iodine and should be avoided. Fresh meat is acceptable. Check the label on whole turkeys, turkey breasts and turkey cutlets. Many food makers inject broths into the turkey.