Why not go back to nature for our nutrition???

Did you ever wonder why we moved so far away from the real food  nature provided.  90% of our food is processed and what most people can call food like substances.  We need Real Food and we need it now.  Lets go back to what actually gives us the nutrition we need to support our bodies to be healthy.  God intended for us to eat food in it's most natural state so why don't we do what we need to do?  Lets discuss the reasons why this has gone so far the other way, if you will.