Spend Time With Thinner People If You Want To Lose Weight, Says Study

17 Aug 2016 --- People trying to lose weight should include thinner people in their social lives, according to a study by a Baylor University researcher.

The findings were based on an analysis of a Gallup Organization survey of 9,335 people aged 18 to 65 in American households. Researchers supplemented the data with questions, tracking for one year the participants' self-reported social networking changes and body mass outcomes. Respondents identified the four adults with whom they spent free time most frequently, whether household members, relatives or friends.

They also rated each contact's body mass relative to their own, Andersson said. Matthew Andersson, Ph.D., assistant professor of sociology in Baylor's College of Arts & Sciences said, "we relied on how people perceived those in their network rather than actual weight measurements."

Individuals were asked whether they wanted to lose, maintain or increase weight. The study also assessed how often participants interacted with those they identified as frequent contacts, whether in person or by phone, email, texting or social media, Andersson said.

Frequency of contact played a major role. With fewer than 100 interactions with an individual during a year, changes in weight were linked to a fraction of a pound. But as interactions reached hundreds and even thousands, weight differences became more substantial.

"What we don't know is what respondents are doing with their social contacts, whether through texting, in person or on social media. They might be going out to eat; they might be going to the gym; they might be doing something totally unrelated. We just don't know," said Andersson.

Further research should investigate the nature of the associations, for example, whether increased contact reflects an activity such as joining a weight-loss group.

"It would be useful to have a more complete view of the individuals," Andersson said, "Maybe someone has a certain personality type and wants to lose weight all the time, while another person might be trying to lose weight for a special occasion like a wedding."