Ascophyllum nodosum, or kelp, is a variety of Atlantic seaweed also
known as Norwegian kelp. This aquatic plant is best known for its use in
Asian cuisine as a sea vegetable. In its dried form, kelp is used to
season soups and sushi.
Kelp is valued as a natural source of nutrients including iodine. The herb is also a natural source of algin, a type of fiber capable of absorbing up to 300 times its weight in water.