A new study says economic factors such as the concentration of major grocery stores and restaurants may explain the rise in obesity.
University of Louisville researcher Josh Pinkston helped compile data examining 27 variables that impact body mass index.
“It’s certainly an easy conclusion that people aren’t responding to the increased convenience and decreased cost of food in a balanced manner or at least in a manner that’s good for long-term health," said Pinkston.
“Restaurants obviously save people time in terms of cooking and cleaning," said Pinkston. "The warehouse clubs might be able to sell foods that can be consumed in a more convenient manner, but they also sell food at lower prices.”
The study found that the number of supercenters like Sam’s Club or Costco lead the list in causing obesity to rise, followed by restaurants.
Researchers also found the decline in blue-collar employment contributed to a 6-percent rise in obesity.