What Is Bladderwrack Used for Today?
Bladderwrack contains high concentrations of iodine , and for this reason it has been recommended as a treatment for hypothyroidism (underactive thyroid gland). 1 However, iodine will only help for the type of hypothyroidism caused by iodine deficiency, which is a relatively rare condition in the developed world. If your iodine levels are not low, taking extra amounts of iodine can cause your thyroid gland to become either over- or underactive, causing hypothyroidism or hyperthyroidism , respectively. Furthermore, the amount of iodine supplied by bladderwrack is unpredictable. (see Safety Issues) A component of bladderwrack called alginic acid swells upon contact with water; when taken orally, it forms a type of seal at the top of the stomach, and for this reason is used in over-the-counter preparations for heartburn . The same constituent gives bladderwrack laxative properties as well. 2 Other proposed uses of bladderwrack include treating atherosclerosis and strengthening immunity ,
