Banning fast-food advertising on television in the United States could reduce the number of overweight children by as much as 18 percent, researchers said on Wednesday.

But the team at the National Bureau of Economic Research questioned whether it would be practical to impose that kind of government regulation — something only Sweden, Norway and Finland have done.

“We have known for some time that childhood obesity has gripped our culture, but little empirical research has been done that identifies television advertising as a possible cause,” said economist Shin-Yi Chou of Lehigh University in Pennsylvania.

“Hopefully, this line of research can lead to a serious discussion about the type of policies that can curb America’s obesity epidemic.”

For their study, funded in part by the federal government, Chou and colleagues used data on nearly 13,000 children from the 1979 Child-Young Adult National Longitudinal Survey of Youth and the 1997 National Longitudinal Survey of Youth, both issued by the U.S. Department of Labor.

Thu, 2008-11-20 13:26 - Topic: , , , ,