For instance, wakame, another favorite, contains 13 times more calcium than milk does.

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Delicious Ways to Sample Seaweeds

Various kinds of seaweeds may be purchased from Japanese, Korean, or Chinese grocery stores, health-​food shops, or even some of the larger grocery markets. They usually come in packages of dried sheets. Some stores may sell them marinated in soy sauce. The most common varieties are wakame, nori, and kombu.

The easiest way to try wakame is to add them to your salad or soup. Simply soak them in water, rinse off the salt, cut them in small pieces, and toss them in. Marinated seaweed may be added to steamed rice or other dishes.