Obesity means having an unhealthy amount of body fat. This puts your health in danger.Obesity puts you at greater risk for type 2 diabetes, heart disease, high blood pressure, arthritis, sleep apnea, some types of cancer, and stroke.Treatment involves a long-term plan for making lifestyle changes. Medicine or surgery is sometimes used.Obesity and type 2 diabetes commonly co-occur. Weight loss is associated with significant health benefits, including improved glycemic control and reduced blood pressure. This article reviews approaches to the treatment of obesity, considers special issues relevant to obese patients with type 2 diabetes, and presents suggestions for the prevention of obesity.To be overweight in the United States is to be a member of the majority. Recent data indicate that fully 64% of American adults are either overweight or obese (BMI ≥30 kg/m2).These figures represent a sharp increase over the value of 55% in and reflect a doubling in the rate of obesity since 1980 (i.e., from 15 to 30%).The World Health Organization has labeled obesity a global epidemic; indeed, a recent report estimated that 1 billion people worldwide are overweight and 300 million are obese.In the United States, obesity has been estimated to cost approximately $99 billion a year, principally through its association with cardiovascular disease,