This book provides an overview on current trends and developments in precision nutrition and personalized health preservation, focussing on a field which is undergoing rapid change. Today, personalized strategies contrast generally accepted guidelines for specified groups and improved health and disease markers are shifting health care toward preventive strategies. At the same time, advances in food additives, nutraceuticals, functional, and medical foods are breaking down the traditional domains of health-related disciplines. This book aims to provide an overview on these processes, discusses arising problems, and provides an outlook on the future of personalized health care and the role of precision nutrition. It covers preliminary thoughts on what has been achieved and focusses on developments in the area of metabolic diseases, aging, and neurology.  The book is intended as a primer in the field of precision nutrition and is aimed at researchers, clinicians, and students in health-related disciplines, who would like to get insights into current trends and developments in this area