If you are planning to cut down on your daily food intake to get into shape, better dine alone as a new research has found that people tend to eat more with friends and family.
Eating "socially" has a powerful effect on increasing food intake relative to dining alone, said the study published in the American Journal of Clinical Nutrition.
"We found strong evidence that people eat more food when dining with friends and family than when alone," said research leader Helen Ruddock from the University of Birmingham in Britain.
Previous studies found that those eating with others ate up to 48 per cent more food than solo diners and women with obesity eating socially consumed up to 29 per cent more than when eating alone.
For the study, the researchers evaluated 42 existing studies of research into social dining.
The researchers found that people eat more with friends and family because having food with others is more enjoyable and social eating could increase consumption.
Social norms might 'permit' overeating in company but sanction it when eating alone and providing food becomes associated with praise and recognition from friends and family, strengthening social bonds.
The researchers called the phenomenon of eating more with friends and family "social facilitation".
They found that this social facilitation effect on eating was not observed across studies which had looked at food intake amongst people who were not well acquainted.
"People want to convey positive impressions to strangers. Selecting small portions may provide a means of doing so and this may be why the social facilitation of eating is less pronounced amongst groups of strangers," Ruddock said.
The researchers explained that ancient hunter gatherers shared food because it ensured equitable food distribution.
In the case of social facilitation, we have inherited a mechanism that now exerts a powerful influence on unhealthy dietary intakes, the researchers said.
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