Why do grits remind U.S. Southerners of home, while maple syrup does that for Canadians, and chocolate activates positive feelings for the Swiss? “Behind our seemingly nationalistic food preferences are the psychological processes that inform group identity, which, research shows, can change depending on our environment,” explains a Pacific Standard article on social identity theory. The brief article closes with “identities that govern seemingly innate experiences, such as the taste of food—or even racial bias—can be harnessed to create positive social change.” It doesn’t provide any specifics, however. Hopefully future article will do so.