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The work looked at over 1,000 people in Switzerland who responded to questions covering food choices, how they eat, and five personality traits.
"We found that a person's personality does, in fact, determine why he or she eats and what he or she eats," wrote study author Carmen Keller.
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- Extroverts: Respond more to external reasons like tasty aromas and end up eating more sweets, meats, savory foods, and sugary drinks. This could also be because they're more likely to eat socially.
- People who lack conscientiousness: Give in to temptation more easily, especially with food that smells or tastes great, and they also eat more impulsively.
- Conscientious people: Eat more healthy foods and are less likely to overeat.
- Neurotics: Eat their feelings, especially high-calorie foods in response to negative emotions.
- People who are open to new experiences: Tend to eat more fruit, vegetables, and salads.
Keller theorizes, "the higher sociability of extroverted people results in having more meals with other people and, therefore, eating foods that are not healthy."
New York magazine points out the study only looked at Swiss subjects, and more work has to be done before calling it a certainty.
