Skinny friends may make you eat more: study

Tue Sep 29, 2009 5:55pm EDT
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NEW YORK (Reuters Life!) - That friend who stays thin despite eating anything and everything is not just annoying. He or she might also wreck your diet, according to new research.

Researchers from the University of British Columbia in Kelowna, Canada, found that when college students watched a movie and ate snacks with a companion, the students typically followed a thin friend's lead when she overindulged.

However study participants used more self-control when snacking with a heavier companion who overate.

The findings, published in the Journal of Consumer Research, suggest that seeing a thin friend devour a big meal gives us implicit permission to do the same.

"We think 'if she can eat like that and stay thin, so can I,' or 'she is having cake, then I can too,'" researcher Brent McFerran told Reuters Health.

"In other words the most dangerous person to eat with is not someone who is obese, but a thin friend with a large appetite."

For the study, McFerran and his colleagues recruited 210 female college students for what the participants believed was a study on movie viewing. Each woman watched a movie with a companion, who was actually a member of the research team.

In some cases, the researcher showed up as her normal 105-pound self, while in others she donned padding that made her appear to be obese.

During the movie, the pairs were offered snacks, with the undercover researcher taking her portion first.   Continued...

<p>Subway riders walk through the turnstiles while leaving the U.S. Open in New York in this September 4, 2007 file photo. REUTERS/Lucas Jackson/Files</p>