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Ashley L. Pyne

Ashley L. Pyne, MS, RDN, CD

Languages spoken: English

Academic Information

Departments Primary - Internal Medicine

Divisions: Gastroenterology

CLINICAL:

Ashley Pyne, PhD, RDN, CNSC, is a registered dietitian nutritionist and certified nutrition support clinician at University of Utah Health. She provides medical nutrition therapy for people with complex gastrointestinal (GI) conditions, including eosinophilic GI diseases, eosinophilic esophagitis (EoE) at the University of Utah Multidisciplinary Eosinophilic Gastrointestinal Disease Clinic, as well as inflammatory bowel diseases (IBD) such as Crohn’s disease and ulcerative colitis, irritable bowel syndrome (IBS), and celiac disease.

Dr. Pyne believes diet is not “one size fits all.” She partners with each patient to build a personalized eating plan that helps manage their condition, eases symptoms, and reduces stress around food. For patients on elimination diets, she focuses on meeting nutrition needs, keeping the diet as broad as possible, and guiding the safe reintroduction of foods.

As a certified nutrition support clinician, she also cares for patients who need specialized nutrition, including tube feeding and parenteral (IV) nutrition. She works closely with gastroenterologists, allergists, and the multidisciplinary EGID clinic team so nutrition care fits each patient’s full treatment plan.

Conditions & services (for the specialty tags)

· Eosinophilic esophagitis (EoE) and non-EoE EGIDs (eosinophilic gastritis, enteritis, colitis)

· Elimination diets and food reintroduction

· Crohn’s disease and ulcerative colitis

· Irritable bowel syndrome, including low-FODMAP diet

· Celiac disease and gluten-free diet education

· Malnutrition and unintended weight loss

· Enteral (tube) and parenteral nutrition support

RESEARCH:

Dr. Pyne is a translational dietitian-scientist at the University of Utah School of Medicine. She earned her PhD in Nutrition and Integrative Physiology Department and completed a Post-doctoral Fellowship within the Division of Gastroenterology at the University of Utah. Her research sits at the intersection of diet and the immune system in eosinophilic gastrointestinal diseases (EGIDs). Her doctoral and post-doctoral work examined food-specific antibodies and how these markers relate to trigger foods and inflammation. She has also studied inflammatory markers in EGIDs as possible screening tool for diagnosis. Dr. Pyne’s long-term goal is to make the diagnosis, monitoring and dietary interventions for EGIDs faster and more precise for patients.

Selected Publications

Journal Article

  1. Pyne AL, Schuman SS, Brintz BJ, Dodds W, Silon B, Pletneva MA, Peterson KA (2025). Inflammatory Markers in Gastric Fluids Differentiate Patients With Eosinophilic Gastritis: Search for a Disease Screener. Clin Transl Gastroenterol, 16(10), e00898.
  2. Allen-Brady K, Clayton F, Hazel MW, Stevens J, Pyne AL, Pletneva MA, Cessna M, Stubben C, Robson J, Fang J, Peterson KA (2025). Overlap of Genomic and Transcriptomic Genes Identified in Familial Eosinophilic Esophagitis. Gastroenterology, 168(6), 1101-1113.e18.
  3. Pyne AL, Uchida AM, Hazel MW, Pletneva MA, Allen-Brady K, Peterson KA (2024). Differing Epithelial and Immunologic Activation Patterns Following Food Reintroduction Reveal Different Transcriptional Profiles in Active Eosinophilic Esophagitis. Gastroenterology, 168(3), 598-600.e3.
  4. Pyne AL, Hazel MW, Uchida AM, Qeadan F, Jordan KC, Holman A, Harward B, Gleich GJ, Peterson KA (2022). Oesophageal secretions reveal local food-specific antibody responses in eosinophilic oesophagitis. Aliment Pharmacol Ther, 56(9), 1328-1336.

Video/Film/CD/Web/Podcast

  1. Ashley Pyne (2024). Patient Webinar: Inflammatory markers in eosinophilic gastritis [Web]. American Partnership for Eosinophilic Disorders. Available: https://apfed.org/events/eos-support-webinar-series/.