Dr. Means argues that a vast majority of chronic illnesses, including heart disease, diabetes, and even mental health conditions, share a common root cause: poor metabolic function. The book explains how inefficient energy production within our cells can trigger a cascade of negative health outcomes, impacting everything from our energy levels and mood to our risk for serious diseases.

This book isn't just about understanding the science; it's about providing readers with practical tools to improve their metabolic health. Dr. Means outlines a clear and accessible four-week plan that encompasses dietary principles, exercise strategies, and methods to optimize sleep and circadian rhythm – all key players in achieving 'good energy.'

'Good Energy' moves beyond restrictive dietary philosophies and embraces a personalized approach to health. While the book outlines six fundamental food principles, Dr. Means emphasizes that these principles can be tailored to suit individual needs and preferences, whether you're a committed carnivore or a dedicated vegan.