Also, we are all forgetting about the fish here. With right planning, the fisheries around the big oceans could be used far more efficiently than they are right now. Same goes for smaller creatures that are nommy well prepared and contain ton of protein such as Krill (ever wonder how blue whale got to be biggest animal in the world while eating one of the smallest?). Just bringing this up as I love seafood :p
Also, this does not really touch city folk, but I do love both fishing and hunting, and food tastes all that much better when you killed it yourself. If I had to dump what I catch away without eating it, what would be the point?