More than a third of U.S. adults are obese. But at least the climb in the country's obesity rate seems to be slowing.

Figures from the National Center for Health Statistics showed 34% of Americans age 20 and older were obese in 2007-08, according to a study of CDC data published in JAMA today. Add in people who are overweight and the total goes to 68%. Seventeen percent of children ages 2 through 19 were obese and 32% were overweight, another JAMA study said.

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