Obesity, weight loss, and health

Obesity is a multifactorial, complicated condition or group of conditions that afflicts a growing number of people in the United States. Precise etiologies are not well understood, and both commercial and medical treatment programs are characterized by high rates of recidivism. A cultural preoccupation with slimness has created a huge industry serving millions of people who are attempting continually to reduce weight. Contradictory messages from professionals have led to confusion concerning the health implications of obesity and the potential risks of repeated dieting. This review summarizes the major areas of consensus and controversy concerning the health implications of obesity and weight loss and suggests directions for treatment that take into account the complex causes and consequences of obesity.