Matt Fitzgerald is an acclaimed endurance sports coach, nutritionist, author, and co-founder of 80/20 Endurance. His many books include The Endurance Diet, 80/20 Running, and How Bad Do You Want It? Matt's writing also appears regularly in magazines and on websites such as Women's Running and Outside. His online training plans have helped thousands of athletes of all experience and ability levels achieve their goals. Certified by the International Society of Sports Nutrition, Matt has consulted for numerous sports nutrition companies and he is the creator of the Diet Quality Score (DQS) smartphone app. A lifelong athlete, he speaks frequently at events throughout the United States and internationally.