Patsy Catsos

Patsy Castos, MS, RDN, LD, is a leading expert in FODMAPs and IBS. A registered dietitian/nutritionist based in Portland, Maine, with a BS in nutrition from Cornell and a master’s in nutrition from Boston University, she completed her internship at Boston’s Beth Israel Hospital and maintains a private practice. She is the author of THE IBS ELIMINATION DIET AND COOKBOOK and also speaks at conferences to other nutritionists and doctors.