@Terrificli -- There are all sorts of "homemade cures" such as the wakame and rice one you mentioned out there. Do they work? I would like to think that they do but it is hard to tell until there is some impartial, scientific research done.
We know seaweed is healthy. Does it promote long life? It seems that has been neither proven or disproven. Meanwhile, it couldn't hurt to eat a little wakame seaweed here and there.