Jack Kruse is a neurosurgeon and pretty smart guy (and a wee bit intense too). He has been on a number of Podcasts - especially Ben Greenfield's fitness podcast. I recently downloaded his book to my Kindle, but I have yet to read it.

Terry Wahls is another person who advocates for a Ketogenic diet for neurological conditions and has an excellent book as well. She has been interviewed on several podcasts in the Paleo and fitness communities.