People seem to always have beef with vegans — and scientists say they’ve figured out why. A new study published in the journal Food Quality and Preference found that your typical carnivore’s hatred of vegans might simply be due to envy. Researchers from University of Vaasa in Finland wanted to understand why a plant-based diet and the use of meat substitutes are still so frowned upon in Europe. “The consumption of meat and meat substitutes is a highly charged social phenomenon,” Roosa-Maaria Malila, an author of the study, said in a statement. “According to our research, consumers who prefer plant-based...