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Practice Lead, Registered Dietitian

Dayna Zarn

Dayna’s nutrition philosophy focuses on self-empowerment, positive relationships with food, dietary balance, and mindful eating. These skills help clients create permanent and sustainable lifestyle changes. She loves helping clients find fun, easy, and exciting ways to prepare and enjoy the foods they love. She is dedicated to promoting optimal living through credible evidence-based nutrition.

⁠She supports clients who want to optimize their health, including reducing inflammation, increasing energy, improving exercise performance, boosting brain health, and preventing or managing chronic conditions. She uses macronutrient-based science to load the body with nutrient-dense foods to minimize any diet suffering like hunger, cravings, and moodiness.

Dayna has 15 years of specialized work in chronic disease management and prevention including obesity, diabetes, heart disease, and digestive health. Dayna became a Registered Dietitian following her Bachelor of Food Science Degree and Dietetic Internship at the University of Alberta in 2007. She is registered with the College of Dietitians of Alberta and British Columbia. Dayna was a Certified Diabetes Educator for 10 years.

In her leisure time, Dayna enjoys an active lifestyle that includes sunshine – she’ll be found walking for miles, jogging, mountain and road cycling, yoga, swimming, hiking, and enjoying the outdoors. She also enjoys travelling, spending quality time with friends and family, and has her WSET level 3 wine certification. Dayna enjoys cooking healthy meals with simple ingredients that are delicious and quick to prepare.

  • Eat Smarter: Nutrition for a Healthier Brain
    Avoid: Processed foods, added sugars, trans fats, processed meats. DASH Diet Improves cardiovascular health and reduces stroke risk, benefiting brain health. Eat: Fruits, veggies, whole…
  • Using Nutrition to Mimic the Effects of Weight Loss Medication
    GLP-1 (glucagon-like peptide-1) is changing our approach to weight management. This hormone, important for regulating blood sugar and controlling appetite, has led to new methods…
  • Navigating the science of weight loss medications: are they right for you?
    Since their approval as weight loss drugs in 2021, Ozempic, Wegovy, and other forms of semaglutide have gained significant attention. This has fueled curiosity about…
  • Autophagy and Dietary Strategies for Cancer Prevention and Management
    Facing cancer is one of the most significant health battles many of us can encounter. Genetic predispositions and environmental factors play significant roles in cancer…
  • The Role of Autophagy in Maintaining Brain Health
    Learn how autophagy fosters brain health, combats diseases like Alzheimer’s, and discover dietary strategies to optimize autophagy. Fasting can increase the production of brain-derived neurotrophic factor (BDNF), a protein that supports neurons, contributing to cognitive enhancement.
  • Understanding Autophagy
    What is Autophagy Autophagy, a term derived from the Greek words “auto,” meaning self, and “phagy,” meaning eating, is a biological process that allows cells…
  • Anti-Aging Nutrition Supports Cellular Health and Optimizes Longevity
    Did you know that it’s possible to boost age-fighting processes within your body? To understand how to stimulate these anti-aging benefits, scientists are looking to autophagy,…
  • The Science of Living Longer: How Fasting Promotes Longevity
    Autophagy is a biological process linked to a longer, healthier lifespan. This cellular cleansing process has been linked to a range of health benefits that include reduced inflammation, improved metabolism, enhanced energy production and weight loss promotion – particularly abdominal fat.
  • Maintaining a Healthy Microbiome Requires Plant Diversity
    Maintaining a well-balanced microbiome in the GI tract is an integral part of short- and long-term health. A wide variety of plant-based foods is shown to help this improve.
  • Strengthen Your Immune System with Food
    Food plays an important role in keeping your immune system in top shape. Here are some lifestyle habits and tips for how you can help build up your body’s resilience and response capabilities.
Genetic Testing at Harrison Webinar May 2025
How Genetics Are Enhancing Personalized Care At Harrison
Pharmacogenetics, Nutrigenomics, Hereditary Cancer and Cardiovascular Disease Testing. Presented by Sanda Islik, Dr. Bobbi-Jo Whitfield, Dayna Zarn and Carol Cremin
Creatine powder for all ages
The Universal Edge of Creatine: From Strength Training to Prolonged Vitality
Maintaining strength and lean muscle mass is a crucial component of healthy aging, particularly for preventing frailty and ensuring an active lifestyle. Among the many…
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Traditional Healthcare Values Meet Advanced Medical Care
Finding a healthcare provider that prioritizes client care and provides diligent follow up can be challenging. Howard describes his experience with our Vancouver (West Hastings)…
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The Generational Impact of Comprehensive, Prevention-focused Family Medicine
Mark’s path to better health with Harrison highlights the critical role of family health history and a dedicated healthcare team. Learn how comprehensive care and…
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From Health Scare to Self-Care: The Strength of Daily Habits
A Personalized Health Assessment showed high LDL cholesterol levels, elevated blood pressure, prediabetes, and low vitamin D – a surprise to Cadeyrn in his 40’s.…
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Unstoppable at 70
Exercise is medicine; by following the advice of a preventive healthcare team, Harrison client and Mount Everest climber, Bill ensures his mind and body are…
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A Second Chance at 63: My Wake-Up Call to Health
The wake-up call came in the form of two serious conditions: diabetes and liver disease. When Brian first met his Harrison team, his health was…
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We would like to acknowledge, with gratitude, that Harrison Healthcare operates on the traditional, ancestral, and unceded territories of many Nations. In Vancouver, we acknowledge the Musqueam, Squamish, and Tsleil-Waututh Nations. In Calgary, we acknowledge the Blackfoot Confederacy (Siksika, Kainai, Piikani), the Tsuut’ina, the Îyâxe (Stoney) Nakoda Nations, and the Métis Nation (Region 3). In Toronto, we acknowledge the Mississaugas of the Credit, the Anishnaabeg, the Haudenosaunee, and the Huron-Wendat peoples, whose shared territory is covered by the Dish with One Spoon Wampum Belt Covenant and Treaty 13. With appreciation, we recognize that these lands have been stewarded by these Indigenous communities since time immemorial and continue to be home to many diverse First Nations, Inuit, and Métis peoples.
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