Robb Wolf is a 2 x New York Times best selling author with his books Wired to Eat, and The Paleo Solution.  He is considered one of the worlds foremost experts in Paleolithic nutrition, but also has a diverse background in strength and conditioning, as well as academia as a research biochemist.  He is the host of The Paleo Solution podcast on Itunes, and his website RobbWolf.com is a vast resource for anyone with questions or interest in the Paleolithic approach to nutrition.