Her trailblazing book, IBS--Free at Last! (Pond Cove Press, 2009), introduced U.S. health care providers and consumers low-FODMAP diets for irritable bowel syndrome (IBS). Patsy is the author of the Flavor without FODMAPs Cookbook and editor of the blog IBSfree.net.Ms. Catsos earned a B.S. in Nutritional Science from Cornell University and an M.S. in Nutrition at Boston University. She completed her internship at Boston's Beth Israel Hospital. She is a professional member of the Crohn's and Colitis Foundation of American, the North American Society for the Study of Celiac Disease and the Academy of Nutrition and Dietetics; she is past-president of the Maine Academy of Nutrition and Dietetics.