Parents' perception of health promotion: What do parents think of a healthy lifestyle in parenting and the impact of the school environment? A qualitative research in the Netherlands

•Parents are role models in children's health related behaviour.•Healthcare professionals experience difficulties in tackling unhealthy lifestyles of children.•Parents perceive health behaviour promotion as an important aspect of their parenting role.•Parents indicate the teacher and the school environment as key factors in developing a healthy lifestyle for their children.•Parents are unaware of the position of healthcare professionals in developing a healthy lifestyle of their children.