Mental health factors contribute to the onset and maintenance of overweight and obese status in children, adolescents, and adults. Binge eating disorder (BED), body image, self-esteem, mood disorders, and social and family factors affect individuals in different ways and contribute to weight gain and failure in weight loss management. Assessment of these mental health factors and treatment by 1 of several mental health treatment models may not only improve self-worth but also weight loss and maintenance.