What factor may not contribute to the development of eating disorders?

Healthy family relationships can play a protective role in mental health and may contribute to resilience against developing eating disorders. A supportive family environment often fosters open communication, emotional support, and a positive self-image, all of which can help mitigate the risks associated with disordered eating. In contrast, social pressures for thinness, trauma, psychological stress, and genetic predispositions are recognized risk factors that contribute to the onset of eating disorders. They can create an environment of insecurity and lead to unhealthy coping mechanisms related to food and body image. Therefore, the presence of healthy family relationships is not a contributing factor to the development of eating disorders, making it the correct answer in this context.