Stephan Guyenet, PhD is a neuroscientist, author, and health expert with a deep focus on the science of eating behavior and obesity. He earned his PhD in neuroscience from the University of Washington and has spent over a decade researching the brain's role in body weight regulation. Stephan is celebrated for his ability to translate complex scientific concepts into accessible insights for the general public.
Stephan is the author of the acclaimed book The Hungry Brain: Outsmarting the Instincts That Make Us Overeat, which explores the neurological and evolutionary factors that drive overeating and weight gain. In addition to his work as an author, Stephan is the co-creator of the Ideal Weight Program on humanOS, a comprehensive approach to weight management grounded in scientific research and behavioral science.
Through his writing, speaking engagements, and educational programs, Stephan has become a leading voice in the field of nutrition and obesity science. He also runs the popular website Whole Health Source, where he shares evidence-based insights on nutrition, health, and weight management. Stephan continues to educate and inspire others to make informed choices about their health, both through his published work and his collaborative efforts in health education.