Nancy Clark will be featured on 20/20 today on ABC in a segment about food vs. supplements. She is one of New England’s premier nutritionists and has clients such as the Boston Celtics, the Red Sox, multiple Olympic athletes, as well as collegiate and elite competitors from multiple sports.

She has just published the 4th edition of her bestselling book, The Sports Nutrition Guidebook. She details the latest research in sports nutrition and diets and lays out some simple plans for better fueling without providing any hype or fad diets.

Nancy Clark has a regular column in New England Runner magazine.