Vincent Busch is a senior researcher at Sarphati Amsterdam, working with the Amsterdam Healthy Weight Program (AHWP). As part of a specialized team he contributes to the quality of the AHWP by knowledge brokering between science, practice and policy. His team ensures that the latest academic insights and evidence find their way into practice and policy, but also to evaluate practicality by submitting it to rigorous multidisciplinary evaluation studies. This way, the team executes and/or guides research for the benefit of the effectiveness and efficiency of the AHWP, all within the broader framework of systems science in health that views it critical to apply a holistic, participatory approach to research as well as policy and intervention development.