Seaweed is also great for detox. It sounds strange, but it absorbs a bunch of toxins including radiation. A doctor working with survivors of Hiroshima made his staff eat tons of seaweed soup--and none of them got radiation poisoning.
Even better, it's free. On a trip to the pristine Block Island, I read in a histiography how settlers used to fight over the copious Irish Moss and kelp that washed up on the beach after storms. I even found a recipe for blancmange, a traditional pudding type thing Block Islanders made from seaweed, and after I harvested a bunch of Irish Moss, I made some. It did taste delightfully like pudding.
In Korean culture, we already eat a lot of seaweed (and traditionally, that's why they say Koreans have such nice hair). For people unused to the salty, somewhat marine flavor, it can take some getting used to. Irish Moss is not easily available unless you harvest your own, but kelp is. I like wild harvested kelp, also because it is done in an eco conscious way.
If you are local to Rhode Island check out She Sells Seaweed; she has a booth at the Pawtucket Winter Farmer's Market where I was first introduced to her yummy Sesame Kelp Snacky Treat.
(p.s. I'm a bit of a raw foodie; I don't even bake mine. It is a little stickier that way, but yummy.)
To mail order, I highly recommend my friends at BC Kelp, where they also sell a lot of interesting varieties for you to branch out as you get more adventurous. They have recipes, too.
COMMENT if you want more recipes, like my Korean seaweed tofu soup. A comforting way to eat seaweed in the winter!