Why Healthy People Get Cavities challenges the conventional belief that tooth decay is simply the result of poor brushing and too much sugar. Dr. Kelley Coble and Ian trace the evolution of cavity research, from the traditional acid-and-bacteria model to the groundbreaking work of pioneers like Weston Price, Ralph Steinman, and Hal Huggins, who explored the connection between nutrition, body chemistry, saliva, and oral health. Along the way, they discuss how modern diets, processed foods, mouth breathing, medications, circadian disruption, and lifestyle factors may influence the health of our teeth long before a cavity appears. Listeners will also learn practical strategies for protecting their oral health—including dietary changes, reducing snacking, improving sleep and breathing habits, selecting dental materials thoughtfully, and creating an environment that supports both healthy teeth and a healthier body. If cavities are a warning signal rather than the disease itself, this episode explores what your mouth may be trying to tell you.