This handbook provides a demographic examination of global obesity trends by bringing together the range of research conducted in this field by demographers, sociologists, epidemiologists, and other quantitatively and demographically oriented social scientists. It utilizes a multidisciplinary demographic approach to provide insights into the global prevalence and mechanisms of obesity, as well as the population level impacts of rising obesity. Major sections include: global obesity trends and prevalence, obesity and demographic structures, processes, and characteristics, emerging areas of study, and obesity in LGBAT populations. This handbook provides readers with a broad understanding of population-based research on obesity and serves as a resource for scholars, students, policymakers, and researchers.