A new report investigating the impact of economic factors on expanding waistlines has found the popularity of Wal-Mart Supercenters and other warehouse clubs to be the single biggest contributor to the nation’s weight gain.
The National Bureau of Economic Research’s working paper – entitled Can Changing Economic Factors Explain the Rise in Obesity? – investigated the impact of economic factors such as the cost of food on obesity.
According to the report, people weighed more when the cost of calories decreased — which explained 36.5 percent of total BMI gains.
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