Bladderwrack is a type of brown seaweed that is also as rockweed, rock wrack, and bladder fucus. It is a type of seaweed that’s rich in vitamins and minerals, such as calcium, iodine, magnesium, potassium, sodium, zinc, and vitamins A and C. True Natural Goodness’s dried bladderwrack contains nothing but 100% dried bladderwrack.
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