Childhood is a time of discovery and learning, and as we grow up we learn what we should or shouldn’t put into our mouths.
We usually arrive at these conclusions when we're chomping down on a rotten piece of fruit or eating something gross that triggers our revulsion reflex, and that bad food memory makes us pay more attention to what we eat in the future.
As we get older and leave those days of discovery behind us it’s fun to take a look back at the way we were, and wonder how the heck we could have eaten such strange things as a child.
BuzzFeed presents a tasteful video with a self explanatory title- People Eat Weird Things They Used To Eat As Kids. Hopefully you won't find this trip down memory lane to be too revolting!
http://en.wikipedia.org/wiki/Pica_(disorder)