It just occurred to me that it is iron that is the building material required. That being the case everything in the human body (and the universe) represents either a building material or a potential source of nuclear energy. How convenient!
Huh? I think your grammar broke. Or you're trying for some kind of very far fetched pun. Either way, please clarify.
Somewhere in the distant galaxy, Clippys post pictures of alternative uses of humans.