Credit : Getty What we eat doesn’t just fuel us; it shapes how we feel, function, and move through the world. For people living with Inflammatory Bowel Disease (IBD), that connection becomes especially powerful. Affecting an estimated 2.4 to 3.1 million Americans, IBD is an umbrella term for chronic conditions that inflame the gastrointestinal tract, explains Alessandro Fichera, MD, chief of the Division of Colon and Rectal Surgery at NewYork-Presbyterian and Weill Cornell Medicine.