Jeff Galloway, based in Atlanta, Georgia, was an average teenage runner who kept learning and working harder, until he became an Olympian.

He is the author of the best-selling running book in North America and a Runner's World columnist, as well as an inspirational speaker to over 200 running and fitness sessions each year.

Jeff Galloway has completed far more than 100 marathons, and he spends the time necessary to answer the questions of thousands of beginners, recreational runners, aspiring marathoners and time goal runners every year.

Nancy Clark, an internationally known sports nutritionist, is board certified as a specialist in sports dietetics (CSSD). She counsels both competitive athletes and casual exercisers, and specializes in nutrition for exercise, wellness, and the management of eating disorders. Her successful private practice is located at Healthworks, the premier fitness center in Chestnut Hill (near Boston). Her clients have included the spectrum from Olympians and members of the Red Sox, Bruins and Celtics to high school and collegiate athletes to ordinary mortals, fitness exercisers, and weekend warriors. Her nutrition advice and photo have even been the back of the Wheaties box! Nancy writes a monthly nutrition column called The Athlete's Kitchen which appears regularly in over 100 sports and health publications and websites. Her best-selling book Nancy Clark's Sports Nutrition Guidebook, Fourth Edition (2008) is a valued reference, popular with health professionals and athletes alike. This best-selling resource offers both the scientific approach to eating for top performance, as well as the practical how to approach that includes specific menu ideas and food recommendations.
Health and fitness are personal values for Nancy. She is a regular bicycle commuter and runner. She has completed several marathons, bicycled across America, and hiked in the Himalayas. She lives in the Boston area with her husband and two teenage children.