In humans and animals, Bromine - either as Sodium Bromide, or Potassium Bromide - has anti-seizure properties, and it is an effective trace mineral in the treatment of hyperthyroid conditions. Many marine plants, particularly kelp, are a rich source of bromine and iodine, so depending on their bromine to iodine ratio, and whether someone is hypothyroid or hyperthyroid, this can have a beneficial or unfavorable effect on thyroid functions when regularly consumed... Full Text