People Of The Future

It seems to me, given the abundance of high caloric menu items these days, that the people most fit to survive are the people who take in the least number of those calories, and expel as much of the junk as possible*.

Is the person of tomorrow a lean,  mean, pooping machine?

(*Although this may seem like a very Western-biased mindset, it is my pretty depressing belief that even the most starving nation will one day find itself awash in twinkies and pizza pockets.)