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Kindergartners' Soda Intake Linked to Aggression in Study

Nearly half of urban 5-year-olds consume soft drinks every day, their mothers say
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WebMD News from HealthDay

By Amy Norton

HealthDay Reporter

FRIDAY, Aug. 16 (HealthDay News) -- Five-year-olds who drink soda every day may have more behavior problems than kids with soda-free diets, a new study of U.S. children suggests.

After looking at nearly 3,000 urban families, the researchers found that 5-year-olds' scores on a standard measure of aggression tended to climb along with their soft drink intake.

Kindergartners who downed four or more servings per day were particularly aggressive, based on mothers' reports. They were twice as likely as other kids to get into fights or destroy property, and also displayed more attention problems than children who didn't drink soda.

The findings were reported Aug. 16 in the Journal of Pediatrics.

Experts were quick to stress that none of this proves that soda, itself, is at fault.

"This is a correlation. We're not saying soda causes aggression," said lead researcher Shakira Suglia, an assistant professor of epidemiology at Columbia University's Mailman School of Public Health in New York City.

Still, Suglia added, there are already reasons to keep children from drinking sugar-laden and caffeinated sodas. "There's no nutritional benefit of soda for children," she said.

A child psychologist not involved in the research agreed.

It's "impossible to disentangle" the effect of one part of a child's diet on aggression, said Rahil Briggs, director of pediatric behavioral health services at the Children's Hospital at Montefiore in New York City.

"That being said, the American Academy of Pediatrics has repeatedly advocated for the elimination of soft drinks in children's diets [and] schools," Briggs added. "Not limiting their intake, but total elimination." The academy is a leading group of U.S. pediatricians.

That advice, Briggs noted, is based on evidence linking kids' soft drinks to increased risks of obesity, cavities and, possibly, behavior problems.

Some past research has tied high soda intake to aggressive behavior in older kids, Suglia said. The new study extends the findings to young children.

The results are based on more than 2,900 mother-child pairs from 20 U.S. cities, many of whom were from single-mom, lower-income households. At age 5, the mothers reported, 43 percent of the children drank soda at least once a day, with 4 percent downing four or more every day.

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