This book is a comprehensive guide on microbiome research, from the fundamentals of to the latest advancements in microbiome-based therapeutics. The initial chapters introduce the concept of the human microbiome delving into the intricate relationship between the human host and its microbiome. The chapter also examines the various tools and techniques used in microbiome research and the role of computational biology in analyzing vast amounts of microbiome data. The subsequent chapters review the role of the microbiome in various health conditions, including metabolic disorders, immunological disorders, gastrointestinal tract disorders, management of cancers, metabolic disorders, and mental health disorders. Towards the end, the book examines the regulatory considerations surrounding microbiome-based therapeutics, and ethical considerations surrounding microbiome-based therapeutics. This book is a comprehensive and cutting-edge guide for researchers, healthcare professionals, and students interested in the field of microbiome research and its potential for transforming healthcare.