Nutrition is one of the most talked-about—and most misunderstood—topics in the mitochondrial disease community. In this episode, Marcy sits down with internationally recognized mitochondrial expert Dr. Mark Tarnopolsky for a practical, evidence-based conversation about what actually matters when it comes to food, supplements, brain fog, and long-term health. From the role of sleep in cognitive function to the science behind creatine, protein intake, processed foods, and popular fad diets, Dr. Mark cuts through the noise and explains what the research really says. Whether you're wondering if the mitochondrial cocktail is worth taking, trying to improve your energy levels, or looking for realistic ways to support your health through nutrition, this episode is packed with actionable insights.

Dr. Mark Tarnopolsky is a Professor of Pediatrics and Head of the Division of Neuromuscular and Neurometabolic Disorders at McMaster University and McMaster Children’s Hospital. A globally respected researcher and clinician, he has spent decades studying mitochondrial disease, muscle disorders, nutrition, exercise, and metabolic health. His work has helped shape how clinicians think about supplements, creatine, and lifestyle interventions for people living with mitochondrial disease, making him one of the leading voices in the field today.

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