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…

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.

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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…

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.

More About the Author Less About the Author

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