Fast Food usually comes wrapped and contained in many different things, a lot of it plastic, etc. Read this story where they removed a piece of fast food plastic from a guy's lung.
http://www.msnbc.msn.com/id/32899060/ns ... ?GT1=43001
It sounds disgusting, but the guy seems to be a lot better in health now that they have removed this from his body. He can breathe better and all.
Amazing. You just never know.