Reflections on the Health System Impact Fellowship and the Future of Embedded Research Comment on "Early Career Outcomes of Embedded Research Fellows: An Analysis of the Health System Impact Fellowship Program".

The Health System Impact (HSI) Fellowship program in Canada offers a transformative approach to health services and policy research (HSPR) training, preparing PhD graduates for diverse career pathways and leadership roles within learning health systems. This commentary builds on Kasaai and colleagues' evaluation of the HSI Fellowship to discuss the diverse career paths of alumni and highlight the multifaceted benefits of the program. Further, we emphasize the need for future research and knowledge mobilization to better understand and evaluate embedded research roles. Developing a robust evaluation framework is essential to capture the unique impacts of embedded research, fostering a culture that prioritizes and integrates it, thereby driving the transformation towards learning health systems.