A breakthrough nutrition strategy for optimum athletic performance, weight loss and peak health based on the Stone Age diet humans were designed to eat.

Paleo-style diets are all the rage as fitness enthusiasts, including the booming nation of CrossFitters, have adopted high protein, low-processed-food diets to fuel their exercise. It all began with the publication of the book The Paleo Diet by renowned scientist Loren Cordain, Ph.D., who presented a breakthrough plan for weight loss and disease prevention without dieting or exercising. In 2005, Dr. Cordain joined with endurance coach Joe Friel to write The Paleo Diet for Athletes.

Now, the authors offer an updated and revised edition of The Paleo Diet for Athletes specifically targeting runners, triathletes, and other serious amateur athletes. Cordain and Friel show that by using the foods our bodies were designed to eat protein, fruits and vegetables, healthy fats and even some saturated fats--anyone can achieve total-body fitness and dramatically improve the strength and cardiovascular efficiency. The Paleo Diet for Athletes gives specific guidelines for what to eat before, during and after a workout or competition along with simple, tasty recipes packed with power and wholesome ingredients.

LOREN CORDAIN, PhD, a world-renowned scientist and expert on Paleolithic diets, is a professor in the department of health and exercise science at Colorado State University. He lives in Fort Collins, Colorado.

JOE FRIEL, MS, is founder and president of Ultrafit, LLC, an association of elite endurance coaches. His books include The Cyclist's Training Bible and The Triathlete's Training Bible. He lives in Scottsdale, Arizona.