Professional caregivers have an important task in building a trusting relationship with parents and adolescents and in supporting parents in their parental roles. Our clinical experience of some 300 adolescents with obesity between 9 and 18 years of age and their parents has convinced us that consideration of parenting styles is fundamental in the treatment of children and adolescents with obesity. Typical case situations supporting the significance of parenting styles and illustrating the relationships between parents and adolescents with obesity can be identified. Group sessions with parents are the preferred mode for discussing typical parenting issues in the management of obese adolescents. The purpose of this paper is to describe different parenting styles, and to present a set of typical case situations and treatment strategies for nurses working with adolescents with obesity.