Fucus Vesiculosus, Bladder Wrack. This is a seaweed, active because of its contained iodine. It is used as an alterative and to reduce unhealthy fat in adipose persons, and in goitre. Dose, f.e., 0 to 4 3; solid extract, 5 to 30 gr. In Japan many species of seaweed are used regularly as food. The Eskimo and other maritime peoples use it. It has been noted that these people are markedly free of glandular troubles and tuberculosis.