David Armstrong

David Armstrong is a Professor in the Department of Medicine at McMaster University, specializing in gastroenterology and nutritional science. His research focuses on Gastroesophageal Reflux Disease (GERD), Inflammatory Bowel Disease (IBD), Celiac Disease, and Home Parenteral Nutrition (HPN). He has contributed to clinical guidelines and large-scale studies on digestive diseases.

Key research themes include:

• Development of evidence-based guidelines for endoscopic and pharmacological interventions in gastroenterology
• Impact of nutrition on gastrointestinal health and disease management
• Quality improvement in healthcare delivery for chronic digestive conditions
• Health policy and workforce planning in gastroenterology
• Environmental sustainability in medical practices

Recent publications highlight his work on antibiotic risks in chronic diseases, micronutrient deficiencies in gluten-free diets, and innovative therapies like teduglutide for short bowel syndrome. His studies often employ multicenter cohort analyses and meta-analytic techniques to address clinical and public health challenges.

Armstrong actively collaborates with interdisciplinary teams and has advanced patient-centered approaches in nutrition therapy and gastrointestinal care.