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I'll have what they're having: Study finds social norms influence food choices
Date:12/29/2013

Philadelphia, PA, December 30, 2013 Is obesity a socially transmitted disease? In order to try to find out, researchers in the United Kingdom conducted a systematic review of several experimental studies, each of which examined whether or not providing information about other peoples' eating habits influences food intake or choices. Their results are published in the Journal of the Academy of Nutrition and Dietetics.

The review looked at a total of fifteen studies from eleven publications. Eight of the studies examined how information about food intake norms influenced food consumed by participants. Seven other studies reported the effects of food choice norms on how people decide what food to eat. After examining the data, investigators found consistent evidence that social norms influence food.

This meta-analysis found that if participants were given information indicating that others were making low-calorie or high-calorie food choices, it significantly increased the likelihood that participants made similar choices. Also, data indicate that social norms influence the quantity of food eaten. Additionally, the review indicated that suggesting that others eat large portions increased food intake by the participants. There was also a strong association between eating and social identity.

"It appears that in some contexts, conforming to informational eating norms may be a way of reinforcing identity to a social group, which is in line with social identity theory," explains lead investigator Eric Robinson, PhD, of the University of Liverpool. "By this social identity account, if a person's sense of self is strongly guided by their identity as a member of their local community and that community is perceived to eat healthily, then that person would be hypothesized to eat healthily in order to maintain a consistent sense of social identity."

The need to solidify our place in our social group is just one way investigator
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Contact: Eileen Leahy
andjrnlmedia@elsevier.com
732-238-3628
Elsevier Health Sciences
Source:Eurekalert

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