We are an island and seagoing people. The coast of Great Britain, including the major adjacent islands, is over 17,000 miles in length, yet we virtually ignore the vast resource of the seaweeds that can be found there. My all-time favourite is marsh samphire.
Nutritionally, seaweed is a perfectly balanced way of imbibing the minerals and trace elements required for a balanced diet. These minerals exist in sea water in a completely balanced form and are thus transmitted to the seaweed. When you think about it, it makes perfect sense in that we, plants, fungi and animals are all part of a balanced ecology with the same need for nutrition.