Participants self-reported taste preferences and answered personality questionnaires assessing Machiavellianism, psychopathy, narcissism, everyday sadism, trait aggression, and the Big Five factors of personality.
Result: Bitter taste preferences were associated with malevolent personality traits and most strongly to everyday sadism and psychopathy.
So if your next date from Tinder orders bitter food at dinner, you know what to expect.
Citation: Christina Sagioglou, Tobias Greitemeyer, 'Individual differences in bitter taste preferences are associated with antisocial personality traits', Appetite, September 30 2015 doi:10.1016/j.appet.2015.09.031
H/T Jenna Bilbrey