Dr. David Duizer BSc, ND, CSCS, MBA

Dr. David Duizer is a naturopathic doctor with over a decade of clinical experience, practicing out of his two Vancouver clinics, Noble Naturopathic West Broadway and Noble Naturopathic Downtown. He holds a Doctor of Naturopathic Medicine, an MBA, and is a Certified Strength and Conditioning Specialist (CSCS), a combination that shapes his uniquely performance-driven, business-savvy, and evidence-based approach to patient care.

Dr. Duizer’s clinical focus has evolved over his career from treating complex chronic disease including cancer, cardiovascular disease, diabetes and autoimmune conditions into longevity, high performance, and optimal wellness. He works extensively with athletes and high-achieving individuals who want to do more than manage disease; they want to optimize how their bodies perform, recover, and age. Central to this work is advanced metabolic testing, which allows Dr. Duizer to move beyond standard reference ranges and build precise, individualized protocols grounded in each patient’s unique physiology.

Through advanced laboratory diagnostics, nutrition, lifestyle modification, herbal medicine, orthomolecular medicine, intravenous therapy and physical medicine, Dr. Duizer aims to identify the root cause of dysfunction, reverse disease processes where they exist, and push healthy patients toward their highest level of performance and longevity.

  • NP 07 Nutritional Pathology

    Nutritional Pathology provides a thorough understanding of the study of the traits, causes, and effects of disease, as seen in the structure and workings of the human body. This course focuses on several body systems, including the etiology of various disease states and the effective recognition of the various nutritional factors involved with the disease process. To do so, students will be taught basic clinical biomarkers of various organ functions. Being closely related to human anatomy and physiology, this course instructs students on pathology and symptomatology of various conditions. Topics that will be covered include the gastrointestinal, hematology, urinary, endocrine, cardiovascular, musculoskeletal, immune, and nervous systems. This course teaches proper terminology involved in identifying various disease conditions. Students will be taught and evaluated on their knowledge of the etiology of diseases in systems as well as advanced clinical research into specific chronic health conditions. Learning Outcomes · Define disease and disease-related terms including the chief causes of disease · Define and discuss manifestations of disease of the discussed organ systems · Demonstrate understanding of the nutritional connection in maintaining homeostasis · Incorporate information provided by various testing/evaluation methods to plan nutritional supplementation and dietary therapies. Nutritional Pathology provides evidence-based and scientific approaches to clinical nutrition. To develop strong protocols, practitioners will take into account acute and chronic diseases including nutritional, dietary, environmental, psychosomatic factors, and specific causes such as infections.