The good news is that Mark Bittman's book is widely available and full of perfectly sane advice about the consumption of food in this country! I would also suggest books by Michael Pollan (Omnivore's Dilemma) and Robert Kenner who produced "Food, Inc.". "Etre the Cow" by Sean Kenniff is gaining steam as a must read book and I have it next in line to read on my kindle! If your interest lies in the history of how Americans have eaten in the past try, "The Food of a Younger Land", by Mark Kurlansky or "America Eats" a compilation of the WPA (Works Progress Administration) from out of work writers during the depression. This book of articles about food habits across America was put together by Pat Willard.
Here is Mark Bittman talking about his book with 'Cooking Up a Story'. Visit http://www.cookingupastory.com/ - it's a great food site! This is part of what I intended to view!
Michael Pollan has a great website about his books that you might like to visit!
He has some sage advice, "Eat food, not too much, mostly plants."