Nancee Jaffe, RD, MS

Nancee Jaffe, RD, MS

Gastroenterology Nutrition| Gastroenterology
Accepting new patients
Primary Location
Westwood Digestive Diseases
100 Medical Plaza
Suite 345
Los Angeles, California 90024


Nancee is the lead dietitian for the UCLA Vatche and Tamar Manoukian Division of Digestive Diseases. Nancee was recruited in 2012 to help develop a comprehensive GI nutrition program to enhance care for patients with specific nutritional issues and to provide ongoing nutritional education to UCLA GI fellows, gastroenterologists and other health care professionals. The GI nutrition program is now an integral part of the division’s Integrative Digestive Health and Wellness Program and the Robert G. Kardashian Center for Esophageal Health.

In addition to her lead role, Nancee continues her clinical nutrition practice, counseling patients on diagnoses such as irritable bowel syndrome, inflammatory bowel disease, celiac disease, short bowel syndrome and idiopathic or functional bowel disorders. Nancee shares her expertise on nutrition and digestive disorders by speaking at national conferences. Her current research includes the reintroduction phase of the low FODMAP diet and the Mediterranean diet’s effects on the gut microbiome in IBS with Lin Chang, MD, co-director of the UCLA G. Oppenheimer Center for Neurobiology of Stress and Resilience. Nancee is also researching different types of diets and their potential effects on remission and flare states in IBD with Berkeley Limketkai, MD, PhD, director of clinical research for the Center for Inflammatory Bowel Diseases. Nancee spearheaded an effort to formalize a GI-specific dietitian group housed jointly under the American Gastroenterological Association and the Academy of Nutrition and Dietetics which became official in 2020.

Nancee graduated from California State University, Los Angeles, where she earned her masters of science in nutrition. She completed her dietetic internship at the Cedars-Sinai Medical Center and at the University of California, Los Angeles, where she was mentored by Dr. Chang.






MS, California State University, Los Angeles, 2012

Areas of Focus

Gi nutrition
Altered bowel habits
Low fodmap diet
Gluten free diet
Irritable bowel syndrome counseling
Food intolerances


Eosinophilic esophagitis (EoE): Approaching from all angles
A guide to food and supplements for altered bowel habits
How to manage bloating
The FODMAP diet: What you need to nnow
What is lactose intolerance?
Gluten free: Is it right for you?
Deciphering the gluten-free matrix: Should I be on a gluten-free diet?
Eosinophilic Esophagitis (EoE) | Kevin Ghassemi, MD & Nancee Jaffe, MS, RDN | UCLA Digestive Diseases
Malnutrition in Upper Gut Cancer
Esophageal Disorders: Manometry, Belch, Rumination, Dysphagia, EoE | UCLA Digestive Diseases
Functional bowel disease
Nutrition-based labs
Nutrition in GI disorders