Nancy Clark, MS, RD, CSSD

Sports Nutrition Expert

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. Her successful private practice is located at Healthworks, the premier fitness center in Chestnut Hill MA. Clark specializes in nutrition for exercise, wellness, and the management of eating disorders. 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 advise and photo have even been the back of the Wheaties’ box!
Nancy completed her undergraduate degree in nutrition from Simmons College in Boston, her dietetic internship at Massachusetts General Hospital, and her graduate degree in nutrition with a focus on exercise physiology from Boston University. She is a Fellow of the American Dietetic Association and the American College of Sports Medicine.
Nancy writes a popular monthly nutrition column called The Athlete's Kitchen which appears regularly in over 100 sports and health publications. Her best selling book Nancy Clark's Sports Nutrition Guidebook is a valued reference; a new 4th Edition was released in April 2008. This popular 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.
Clarks other books include Nancy Clark’s Food Guide for Marathoners: Tips for Everyday Champions (2007), Food Guide for New Runners (2009) and Cyclist’s Food Guide: Fueling for the Distance (2005). They were written from her passion for helping novice marathoners and cyclists, including those participating in charity training programs such as the Leukemia Society’s Team in Training. These books help aspiring athletes enjoy reaching their goals.
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. For more information, see