Obesity is a major contributor to serious health conditions including type-2 diabetes, cardiovascular disease and arthritis. It is a major threat to the health across all ages, races, and socioeconomic groups, and in particular within disadvantaged and underserved communities. Promoting healthy weight requires concerted efforts, including quality improvement, from health care, public health and communities. This book offers prompt publication of original research and presents new information. Specifically, the intent is to address the following areas with respect to obesity prevention: potential interventions, bariatric surgery, arthritis, type 1 and 2 diabetes mellitus, hypercholesterolemia and atherosclerosis.