According to Monir et al. (2010) eating disorder is more prevalent among overweight-obese adolescents of high social class and they conclude that social background, obesity, negative body image, depression and teasing are the main risk factors for developing eating disorder. Boyington et al., (2008) found that weight and body size preferences of African American female youths were primarily determined by the individual and her immediate social circle and were less influenced by opinions of those outside of the social circle; food choices depended on texture, taste, appearance, and context more than on nutritional value; engagement in recreational physical activity was influenced by time constraints from school and extracurricular activities and by neighbourhood safety; and celebrities were not perceived as role models for diet and physical activity habits.