http://www.amazon.com/gp/product/B0065OPZAU/ref=docs-os-doi_0 I've been an avid reader on health, vitamins and diet for a long time. This book's premise is vitamin K2 is the missing piece of the puzzle in reducing heart disease and bone loss. And it makes the first good scientific argument I've heard or read for the paleo diet. It takes a good argument to change my mind and this book does that in a non hyped way, with evidence to back up the authors claims. Very good read, I'm not finished reading this yet but I thought there would be others interested in this.