Michael Pollan's book, The Omnivore's Dilemma: A Natural History of Four Meals, was released in early 2006.  It is not scientific work.  But in a novel way he tries to answer the question of what we should have for dinner.  To find out, Pollan follows each of the food chains that sustain us -- industrial food, organic or alternative food, and food we forage ourselves -- from the source to a final meal, and in the process develops his version of the American way of eating.  The first chapter is all about corn, yet corn is only one of the many grains destroying the health of many Americans.  Unfortunately, Pollan has become a poster boy for the War on American Agriculture and from what I hear he is basically a vegetarian.  Therefore he is actually part of the problem in solving the American health crisis rather than being a part of the solution.  For more on that click on The War on American Agriculture and Ted Slanker's Food Inc. Review.  Here is Pollan's side of the story.