
Growing up in Hawaii gave me great exposure to Asian culture and food. I remember my first "Hawaiian" Thanksgiving. We were invited to a large gathering at a friend's home. We had a turkey, but we also had sushi, sashimi, steamed pork buns, umeboshi (pickled Japanese plums), and plenty of seaweed -- something I had never had before. I soon became a fan of these ocean vegetables and often found myself munching on the many different varieties.
I think we can all agree that seaweed is not a terribly appealing or appetizing word. As such, many enthusiasts refer to them as sea vegetables or ocean vegetables. Whatever you want to call them, these amazing ocean plants are packed with valuable, time-honored nutrition. According to Margaret Wittenberg in her book New Good Food, "Seaweeds have long been known for their nutritional attributes. Traditional Chinese medicinal texts as far back as 2700 BCE mention seaweed's medicinal qualities," including its ability to nourish the thyroid.
Sea veggies are classified as marine algae. They contain chlorophyll in varying amounts but unlike land plants, they don't have stems, roots or leaves. They rely on the sun's energy and its various wavelengths of light for food. Because of this, they contain different pigments and fall into one of three color categories: red, green or brown. Nutritionally, sea veggies can vary greatly. However, they all deliver a wide assortment of valuable trace minerals including iodine, an essential trace mineral required by the thyroid gland and critical for normal cell metabolism. Brown sea vegetables are especially packed with iodine, and it is because of this that they have a long history of use for keeping the thyroid healthy.
Although the health benefits of sea vegetables date back to ancient times, modern-day scientists are focusing on the phytonutrients, including the lignans. These are plant nutrients that have powerful antioxidant properties. While the green sea vegetables deliver the highest amounts of chlorophyll, red and brown varieties have shown significant antioxidant activity.
As you can imagine, sea veggies are often quite high in sodium. Because of this you will want to rinse them off in water before using. You can also use less salt in cooking when you add them to your recipes. Be sure to purchase sea veggies from companies that are very conscious about where the sea vegetables come from and how they are harvested and stored.
A little bit goes a long way with sea veggies. Because they often expand in volume when cooking, only a small amount of dried is needed. Some varieties will need to be rinsed and soaked before use, such as when adding to cooked foods or when cooking time is shortened. Otherwise, for soups, stews and simmering, rinsing is important, but no soaking is required.
Some common varieties and ways to use them are:
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