What Is Bladderwrack Extract?

Bladderwrack extract is a type of seaweed. People use the whole plant to make medicine.Like many sea plants, it contains varying amounts of iodine, which is used to prevent or treat some thyroid disorders. Bladderwrack products may contain varying amounts of iodine, which makes it an inconsistent source of iodine. Bladderwrack also contains algin, which can act as a laxative to help the stool pass through the bowels.

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