In conclusion, this review resulted in developing a list of 83 conditions important for successful implementation of interventions and policies. The list is based on accumulating research evidence and the position of major stakeholders responsible for developing guidelines in health promotion. The list may enhance the implementation of interventions and policies which pursue identification of most successful actions aimed at promoting healthy diet, PA, and a reduction of SB in various populations. It may facilitate future research in that the list may be seen as a point of departure for further syntheses. The list might be shortened if future research demonstrates a lack of relevance of some implementation conditions used in the context of policies and interventions addressing diet, PA, and SB. Until then, this broad list has a potential to inspire accumulating more detailed data and guide the process of application of polices and interventions across contexts.