A new study, published in the journal Appetite, revealed a strange connection between the preference for bitter taste and antisocial personality traits.
The study, which surveyed 953 participants from two US public groups, showed that people who possess antisocial personality traits love and are more inclined to consume bitter foods and drinks (for example, black coffee, dark chocolate, or tonic water).
The strongest connection was observed between a preference for bitter taste and sadism (deriving pleasure from inflicting pain on others) and psychopathy. Furthermore, a positive association was found with traits such as Machiavellianism and narcissism, which are collectively known as the “Dark Triad.”
Crucially, the association did not weaken when the researchers accounted for the preference for sweet, sour, and salty tastes. This confirms that the preference for bitter taste was the most accurate indicator of these personality traits.
Although humans naturally avoid bitter taste, the study’s authors suggest that a preference for bitter foods may be linked to the dark side of one’s personality. These data point to a new, close relationship between the taste system and personality traits.
The research does not prove a cause-and-effect relationship, but it offers a new perspective on human behavior: that the preference for certain foods may reflect more complex psychological processes.
