Just flipped through the book The Longevity Factor: How Resveratrol and Red Wine Activate Genes for a Longer and Healthier Lfe, by Joseph Maroon, MD, Atria 2009, so you wouldn't have to. Not that this is an arduous read at all--it flows, it answers questions, it's well-researched. ( Do we love the fact that author's name is MAROON, or what? You'll see why.)
Basically it boils down to this: Drink red wine; eat dark choc; eat red grapes, blueberries, blackberries, apples, cranberries and so on--you see the pattern here? Oh--drink green tea. Not rooibos, the "red tea" of South Africa? No mention of it.
And exercise, be happy, be spiritual, and all that.
I am being glib here, but that may stem from my eyes having lighted on the words "Iceberg lettuce" in the recipe section of the book.
All the bits about "gene activation" drove me to open that bottle of red. But--for those of you into the deeper story behind the glory of certain (reddish) foods, please, read this book.
( Thanks to photo from http://www.sciencedaily.com/releases/2008/03/080325125937.htm a site that also details the power of red wine specifically in fighting cancer.)