Corn

With the release of the movie , King Corn, it has me opened my eyes wider to what I already knew. If you try to avoid corn in the standard processed food diet, it is nearly impossible. Try it for one day and you'll see. Hence, another reason why there are major reasons to eat a Whole Foods Diet. Other weakpoints in our standard diet are trying to get enough fiber and trying to avoid simple sugars. If you haven't seen this its worth a look
http://www.apple.com/trailers/independent/kingcorn/trailer/.