Season 4, Episode 3
Seed Oils: Science vs Social Media with Dr. Jessie Burns
Original Air Date: March 31, 2026
Few nutrition topics have generated as much heat—and as little clarity—as seed oils. They are often blamed for inflammation, chronic disease, and poor metabolic health, yet they are also some of the most studied fats in human nutrition. Dr. Jessie Burns is a clinical scientist and consultant with a PhD in Human Health and Nutritional Sciences from the University of Guelph, where her doctoral research focused on dietary fatty acids, inflammation, and chronic disease prevention. She also completed postdoctoral training in clinical women’s health research at Carleton University before transitioning from academia into a non-academic career in clinical science and evidence-based medicine. In her current roles, she collaborates with clinicians, industry partners, researchers, and health organizations to review, appraise, and synthesize complex scientific evidence for clinical guidance, knowledge translation, and education. Though she has formally left academia, she continues to collaborate with academic researchers on projects related to dietary fats and women’s health. In this episode, Dr. Burns discusses the role of seed oils on our health, challenge common fears, and distinguish evidence-based facts from social media misinformation.
Season 4, Episode 2
Dinner Doesn’t Just Appear: Foodwork, Households, and Health with Dr. Leah Cahill
Original Air Date: February 27, 2026
Food is central to our health, but the work that goes into making food happen every day—planning, shopping, cooking, negotiating, and cleaning up—is often invisible. This foodwork shapes not only what we eat, but how food, care, responsibility, and power are shared within households. Yet it’s rarely measured, named, or addressed in health research or policy. Dr. Leah Cahill is a registered dietitian and associate professor in the Department of Medicine at Dalhousie University in Halifax, Nova Scotia. She completed her undergraduate degree in nutritional sciences at the University of Manitoba, a dietetic internship with the Winnipeg Regional Health Authority and her PhD in medicine focusing on interactions between nutrition and genetics at the University of Toronto, and then moved to Boston to work as a postdoctoral scientist at the Harvard T. H. Chan School of Public Health. During her five-year postdoc at Harvard, Dr. Cahill worked in the Department of Nutrition collecting skills in nutritional epidemiology and research methodology as she investigated the dietary and genetic origins of cardiometabolic disease in large cohort studies. She is currently the Howard Webster Research Chair in the Department of Medicine at Dalhousie University and Nova Scotia Health where she leads a research program named nourish that investigates nutrition, biomarkers, and clinical patient-oriented research initiatives. In this episode, Dr. Cahill discusses foodwork as a critical—but overlooked—determinant of health and wellbeing, and what it means to study food not just as nutrients, but as a social and relational practice.
Season 4, Episode 1
What Nutrition Epidemiology Can (and Can’t) Tell Us with Dr. Russell de Souza
Original Air Date: January 30, 2026
Nutrition plays a role in nearly every major chronic disease, yet the science behind what we eat often feels confusing or contradictory. Nutritional epidemiology is the field that tries to make sense of these patterns by studying diet and health across populations. In this conversation, we are going to explore what this field can—and can’t—tell us about how food affects our health. Dr. Russell de Souza is a registered dietitian and Associate Professor in the Mary Heersink School of Global Health and Social Medicine and the Department of Health Research Methods, Evidence, and Impact at McMaster University. His passion lies in understanding how what we eat and the environments we live in shape our health throughout life. He conducts everything from clinical trials to in-depth interviews, and works with teams to use cutting-edge ‘omics’ science to dig deeper into our diets. What really drives him is finding ways to help communities that often get overlooked, like pregnant women, South Asian immigrants and Indigenous Peoples, reduce their risk of chronic diseases. Along the way, he has earned prestigious recognition, including the 2023 CNS Young Investigator Award, and his department’s Justice, Equity, Diversity, and Inclusion Award. In this episode, Dr. de Souza discusses how nutritional epidemiology shapes our understanding of diet and health.
Season 3, Episode 10
Sipping Smarter: How Sugary Drinks Shape Health and Habits with Dr. Scott Harding
Original Air Date: December 19, 2025
Sugar-sweetened beverages are one of the most widely consumed sources of added sugars in our diets, and their impact on health has become a major focus of nutrition research and public policy. Governments around the world are exploring tools like taxation to curb intake, but how well do these strategies work—and for whom? Dr. Scott Harding is an Associate Professor of Nutritional Biochemistry at Memorial University in Newfoundland. His research interests include glucose metabolism, cholesterol biochemistry, and the effects of public health policies on reducing obesity and chronic disease, particularly in Newfoundland and Labrador. Dr. Harding's research lab focuses on cardiometabolic diseases, using animal and in vitro models, human trials, and population studies. His team studies public health initiatives like sugar taxes and the metabolic impacts of dietary sugars and fats under varying intake levels. They also investigate how diet and lifestyle factors, such as short or disrupted sleep, activity, and dietary patterns, affect disease risk and nutrient metabolism. Dr. Harding earned his PhD in Human Nutrition from McGill University and completed postdoctoral training at the University of Manitoba and Agriculture and Agri-Food Canada. He has previously held an academic position at King’s College London before joining Memorial University and is currently the Co-Editor of the Journal of Applied Physiology, Nutrition, and Metabolism. In this episode, Dr. Harding discusses the evidence behind sugar-sweetened beverages, what drives consumptions, and what policies including taxation might actually move the needle.
Season 3, Episode 9
Milk Molecules That Matter: Human Milk Oligosaccharides in Infant Development with Dr. Lisa Renzi-Hammond
Original Air Date: November 30, 2025
The first months of life are a special time for the health development and protection of infants. Breastfeeding is the natural and best way of feeding an infant, and positively influences their development and health. Human milk provides the ideal balance of nutrients for the infant and contains countless bioactive ingredients such as immunoglobulins, hormones, oligosaccharides and others. Human milk oligosaccharides (HMOs) are a very important and interesting constituent of human milk, and are the third most abundant solid component after lactose and lipids. Dr. Lisa Renzi Hammond is the Leonard W. Poon Professor for Innovation in Public Health at the University of Georgia in the United States, interdisciplinary group lead for Behavioral and Cognitive Neuroscience, and founder of the Human Biofactors Laboratory. She is also Director of the University of Georgia College of Public Health’s Institute of Gerontology, a research institute that studies lifespan development, from infancy through older adulthood. Her latest project is the development of the Cognitive Aging Research and Education (CARE) Center at the University of Georgia – a state of the art facility dedicated to lifespan neurodegenerative disease prevention, starting in infancy and early childhood, through behavioral intervention, neurodegenerative disease diagnosis and post-diagnosis support. She has presented this research in a wide variety of national and international venues, including the TED stage. This episode is sponsored by Abbott Nutrition.
Season 3, Episode 8
From Science to the Supper Table: Nutrition at the Heart of Diabetes Care with Dr. Hertzel Gerstein and Ms. Keri Howell
Original Air Date: October 31, 2025
Diabetes is one of the fastest-growing health challenges worldwide, affecting approximately 589 million adults between the ages of 20-79 years and shaping the way we think about diet, lifestyle, and long-term health. While advances in medicine have transformed treatment, nutrition remains one of the most powerful tools for both prevention and management. Dr. Hertzel Gerstein is an Endocrinologist and Professor at McMaster University and Hamilton Health Sciences in Hamilton, where he holds the Population Health Research Institute Chair in Diabetes. He is also the Executive Director of the Population Health Research Institute, former Director of the Boris Clinic Diabetes Care and Research Program, and a Fellow of the Canadian Academy of Health Sciences and Royal Society of Canada. Dr. Gerstein pioneered and firmly established international long-term patient-important cardiovascular outcomes trials as the norm for clinical diabetes research. Throughout his career, he’s received many awards, including the 2012 Canadian Diabetes Association’s Lifetime Achievement Award and the 2022 American Diabetes Association’s Outstanding Achievement in Clinical Diabetes Research Award. Ms. Keri Howell is a registered dietitian and certified diabetes educator with Diabetes Care Guelph. She is also a member of the PEACH Sustainable Food Services Committee and has contributed to the Sustainable Food Services Business Case and Implementation Guide. She has dedicated her career to exploring the personal, cultural, and community-focused aspects of nutrition, emphasizing that nourishment extends beyond physical health to emotional and spiritual well-being. Ms. Howell believes that integrating nutrition into patient care requires an understanding of what food means to each individual and asserts that when patients see their cultural foods represented and have autonomy over their food choices, their health outcomes improve. In this episode, Dr. Gerstein and Ms. Howell discuss how nutrition shapes the prevention and management of diabetes. This episode is sponsored by CONTOUR NEXT.
Season 3, Episode 7
Feeding the Future - Inuit Food Sovereignty in Action with Lynn Blackwood and Dr. Farzaneh Barak
Original Air Date: September 30, 2025
Food security is a critical issue that affects communities worldwide, yet the challenges and solutions are deeply rooted in local contexts, cultures, and policies. Disadvantaged groups, including Indigenous Peoples in Canada, face unique barriers to food access, deeply tied to historical, environmental, and socioeconomic factors. Ensuring culturally relevant and sustainable food systems requires evidence-based policies and community-driven solutions. Lynn Blackwood is a Nunatsiavut beneficiary born and raised in Happy Valley-Goose Bay, Newfoundland and Labrador. She currently serves as Food Security Programs Manager with the Nunatsiavut Government, leading initiatives to improve food security in the region and is the first Inuk dietitian and one of the few Indigenous dietitians in Canada, with over 25 years of professional experience across the Northwest Territories, British Columbia, and Newfoundland and Labrador. Lynn has served as a jury member for the Canadian Space Agency’s Deep Space Food Challenge and as a past director on the boards of Dietitians of Canada and the Canadian Foundation of Dietetic Research. Dr. Farzaneh Barak is an Adjunct Research Professor at Carleton and Waterloo Universities, where she conducts research on Canada’s and global food security. She also serves as Senior Policy Advisor and Food Security Lead at Inuit Tapiriit Kanatami (ITK), the national representative organization for Inuit in Canada. She has over fifteen years of experience in national and international research and practice—including work in Uganda, Malawi, Canada, and Iran. With expertise in food policy, intersectional gender analysis, and public health nutrition, Dr. Barak is dedicated to addressing systemic barriers to food security and promoting policies that advance food sovereignty and sustainable community-driven food systems. In this episode, Lynn and Dr. Barak discuss food security in Inuit communities, highlighting the unique challenges they face and the culturally grounded, community-led solutions needed to support sustainable and equitable food systems.
Season 3, Episode 6
Hidden Hunger in the First 1000 Days with Dr. Kyly Whitfield
Original Air Date: July 31, 2025
The first 1,000 days—from conception to a child’s second birthday—represent a critical window for growth, development, and long-term health. Nutrition during this period lays the foundation for growth, cognitive development, immune function, and chronic disease risk. Research in this area helps inform global strategies to improve maternal and child health outcomes. Dr. Kyly Whitfield is an Associate Professor in the Department of Applied Human Nutrition at Mount Saint Vincent University and is passionate about international nutrition, with interests in identifying and combating micronutrient deficiencies during ‘the first thousand days’ window. Her research focuses on maternal thiamine deficiency and infantile beriberi, mainly in rural Cambodia, an area where thiamine-related infant mortality remains a major public health issue. Alongside a few fellow CNS members, Kyly also co-edited a book titled ’The biology of the first 1,000 days’ which is a cross-disciplinary deep dive that explores the biological underpinnings of this critical developmental window. In this episode, Dr. Whitfield discusses global micronutrient deficiencies in the first 1000 days with a focus on thiamine.
Season 3, Episode 5
Vieillir en force: nutrition et santé musculaire avec Dre Stéphanie Chevalier / Aging Strong: Nutrition and Muscle Health with Dr. Stéphanie Chevalier
Original Air Date: June 30, 2025
Les personnes âgées représentent le groupe démographique qui croît le plus rapidement au Canada, avec 19% de la population âgée de 65 ans et plus, soit environ 7 millions de personnes. L’exercice, l’activité physique et la nutrition sont des éléments essentiels d’un vieillissement en santé, contribuant au maintien de la santé musculosquelettique et à la réduction du risque de sarcopénie. Dre Stéphanie Chevalier est diététiste, professeure agrégée à l'École de nutrition humaine de l’Université McGill et chercheuse à l’Institut de recherche du CUSM. Spécialiste du métabolisme des protéines, elle étudie le rôle des nutriments dans la perte musculaire liée au vieillissement et à certaines maladies comme le cancer et le diabète. Ses recherches récentes portent sur les liens entre nutrition, santé musculaire et cognition chez les aînés. Son programme est financé par les IRSC, le FRQS, la Société canadienne du cancer et la FCI. Elle est présidente de la Société canadienne de nutrition et membre du comité directeur de l’étude NuAge. Dans cet épisode, Dre Chevalier abordera le rôle de la nutrition dans le vieillissement, un sujet au cœur des préoccupations liées au vieillissement en santé. *This podcast was recorded in French. To read the AI-generated English transcript, copy and paste the following URL into your web browser: https://cns-scn.ca/sites/default/uploads/files/S3-Ep5-ENGLISH.pdf
Season 3, Episode 4
Digest This: The Truth About Your Gut with Kelsey Moore
Original Air Date: May 30, 2025
Digestive health plays a crucial role in overall well-being, impacting everything from nutrient absorption and immune function to mental health. At the heart of this system is the gut microbiome—a complex network of microorganisms that helps regulate inflammation, metabolism, and even the risk of chronic diseases. Despite its importance, digestive health is often misunderstood, with myths about probiotics, fibre, gluten, and conditions like irritable bowel syndrome (IBS) and celiac disease continuing to circulate widely. Kelsey Moore is a Registered Dietitian with a retail nutrition background and experience in the digestive health space. Kelsey graduated from The University of British Columbia in 2019. She started her career as a sports dietitian and then moved into the retail space where she worked as a Nutrition Operations manager for a local BC food retailer. She is currently working as the Senior Account Manager of Nutrition for the Canadian Digestive Health Foundation where she works with food and supplement brands to help deliver digestive health resources to Canadians. Kelsey is passionate about providing evidence-based information on digestive health and is currently on track to becoming a Monash FODMAP-trained dietitian. In this episode, Kelsey discusses common myths and misconceptions around digestive health. This podcast is in collaboration with the Canadian Digestive Health Foundation (https://cdhf.ca/en/).