Seaweed is high in minerals absorbed from seawater. One third of a cup of dulse contains 19 percent of the iron you need daily and wakame can provide 20 percent of your daily manganese needs. Dulse is also a source of potassium, and all seaweeds provide magnesium, iron and zinc among other minerals. Kelp is a good source of calcium, offering 17 percent of daily needs in one cup. Be cautious with the amount of seaweed you add to your diet, as it has sometimes been found to contain heavy metals.
You may know that vegetables are good for you, but you may not know that sea vegetables should also be included in a healthy diet. Kelp and seaweed are loaded with nutrients and are a source of essential vitamins. Kelp is a type of seaweed found in ocean waters all over the world. Seaweed is available in many varieties, including wakame and kombu, which are popular in Japanese cuisine, and dulse, which can be found on the coasts of Ireland and the state of Maine. Seaweed is an excellent source of minerals, but people with thyroid problems should seek medical advice before consuming kelp, which is high in iodine