A japanese or chinese or mexican scientist has figured out a way to extract the proteins from "Sewage Mud" as he calls it, but it's just a nice way of saying poo sludge.
I know astronauts have devices that can recycle urine and turds to make purified water, but thats after an insane filtering process, and even then some of them are not 1000% fond of the idea. But, this is just practically coiling one up on a plate and diggin in
http://www.noob.us/miscellaneous/sci...f-human-feces/