In my post yesterday about the Nightline segment, I should have also given a shout-out to Dr. Kurt Harris. First of all, he's a UI grad as both an undergraduate and from medical school, so of course this speaks well of him! But more importantly, he, too, provides a rich and thoughtful resource in his blog about nutrition and health. Each of the persons that I normally mention in this realm has a slightly different take on what is best, but a couple of really regular and standard points stand out: grains and sugars (especially fructose in high doses) will be the death of us. Really, the death of us. Dr. Harris is another excellent resource for this perspective. Check out his "Get Started" link, which is short and to the point.
P.S. The "PaNu" should be pronounced "pay new", but I lack the diacritical marking for a long "a". He's shortening "paleo nutrition".