Ravella, Shilpa: - Shilpa Ravella is a transplant gastroenterologist with expertise in nutrition and an Assistant Professor of Medicine at Columbia University Medical Center. Her writing has appeared in The Atlantic, New York Magazine, Slate, Discover, and USA Today, among other publications, and she has appeared as an expert on ABC's Good Morning America and in print media outlets including Forbes, Cosmopolitan, Food and Wine, Glamour, and Women's Health. Her TED-Ed lesson, 'How the Food You Eat Affects Your Gut, ' has garnered over five million views.