More recently, the food and nutrition panorama has become much more meticulous. Currently, personalized food and nutrition involves an ever increasing in-depth approach, evaluating a person's genes, eating habits, training schedules, sleep patterns, microbiome, and even the metabolome. The roles that food plays in peoples lives are wide ranging and may include comfort, sustenance and nutrition, as well as survival, addiction and poison. In this book, the concept of personalized food is explored. It covers the practices of home cooking as well as picky eaters. It looks into the why the personalized nutrition changes over a lifetime. The book also presents a look into what the future holds, with concepts such as the quantified self and a discussion of current dietary recommendations.