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Seventeen year-old Marissa Hamilton stands on a scale during her weekly weigh-in at the Wellspring Academy October 21, 2009 in Reedley, California.
Nearly one-third of American children and teens are overweight or obese, but new research shows that that figure might be starting to drop.
The state of California as a whole saw a modest decline in childhood obesity rates of about 1 percent, and one city in L.A. is making a lot more progress. Rosa Soto is the Southern California Director for the California Center for Public Health Advocacy, which did the research for the study.