To battle the obesity epidemic in america health care professionals and policymakers need relevant useful data on the effectiveness of obesity prevention policies and programs bridging the evidence gap in obesity prevention identifies a new approach to decision making and research on obesity prevention to use a systems perspective to gain a broader understanding of the context of obesity and the many factors that influence it. Bridging the evidence gap in obesity prevention identifies a new approach to decision making and research on obesity prevention to use a systems perspective to gain a broader understanding of the context of obesity and the many factors that influence it. Bridging the evidence gap in obesity prevention identifies a new approach to decision making and research on obesity prevention to use a systems perspective to gain a broader understanding of the context of obesity and the many factors that influence it. To battle the obesity epidemic in america health care professionals and policymakers need relevant useful data on the effectiveness of obesity prevention policies and programs bridging the evidence gap in obesity prevention identifies a new approach to decision making and research on obesity prevention to use a systems perspective to gain a broader understanding of the context of obesity and the many factors that influence it. Bridging the evidence gap in obesity prevention identifies a new approach to decision making and research on obesity prevention to use a systems perspective to gain a broader understanding of the context of obesity and the many factors that influence it