How Bad Do You Want It? About the Author MATT FITZGERALD is a certified sports nutritionist and the author of numerous books on running, triathlon, nutrition, and weight loss. His most recent books are Racing Weight Cookbook, Racing Weight Quick Start Guide, RUN: The Mind-Body Method of Running by Feel, Racing Weight, and The Runner's Diary. Matt is a regular contributor to Competitor, Men's Fitness, Men's Health, Outside, Runner's World, Bicycling, Running Times, Women's Running, and other sports and fitness publications. Fitzgerald is a featured coach on Training Peaks, Pear Sports, and Active.com. He is a certified sports nutritionist (CISSN) licensed by the International Society of Sports Nutrition. He lives and trains near San Francisco, California.