Motivation System of Healthy and Safe Nutrition in Iranian Adolescent Girls: A Qualitative Study.

The motivation to maintain health and social functions, to maintain the family's mental and economic health, and to achieve goals and be successful in life has a powerful impact on the decisions and behaviors of adolescent girls to have safe and healthy nutrition. Therefore, recognizing the motivational system, as a key and determinative factor in developing the adolescents' intention to adopt health-related behaviors, is an effective step to design and develop successful interventions in promoting nutritional behaviors.