This series delves into the practice of intermittent fasting (IF), offering a comprehensive exploration of its principles, benefits, and methodologies. Starting with an introduction to IF and its historical and scientific background, the series covers various fasting methods, detailing their advantages and challenges. It examines the significant health benefits associated with IF, such as weight loss, metabolic improvements, and potential longevity effects, while also addressing common obstacles and providing practical guidance for implementation. Special attention is given to nutritional strategies during fasting periods, adaptations for specific populations, and a look at the future of IF research. Designed to be both informative and actionable, this series aims to equip readers with a deep understanding of intermittent fasting and how it can be integrated into a healthy lifestyle.