Soda Linked to Aggression, Inattention in Kids
Consumption of even 1 soft drink per day may be associated with increased negative behavior in young children, new research suggests.
A cohort study of almost 3000 5-year-olds showed that those who drank 1 to 4 servings of soda per day had significantly higher aggressive measurement scores than their peers who drank no soda.
In addition, those who consumed 2 or more servings had higher withdrawn behavior scores, and those who consumed 4 or more servings had higher attention problem scores.
“We were seeing a dose-response effect. So with every increase in soda consumption, the association and the scores basically increased,” lead author Shakira Suglia, ScD, assistant professor of epidemiology at the Mailman School of Public Health at Columbia University in New York City, told Medscape Medical News.
“This held up even after we adjusted for candy or fruit juice consumption and for a variety of social factors, especially for aggression with the highest level of soda consumption,” she added.
Although the investigators suggest that “future studies should explore potential mechanisms” that might explain these associations, Dr. Suglia noted that past research has shown that even 1 soda per day is too much for young children.
“Certainly water or milk is more nutritious and a better alternative. Our advice is consistent with what is already out there: for the very young kids, any soda is not a healthy option. And even for adolescents, I think parents should really limit the amount of soda their kids are drinking.”
The study was published online August 15 in the Journal of Pediatrics.
World’s Biggest Soda Consumers
According to the researchers, more soda per capita is sold in the United States than in any other country.
Although past research has suggested an association between soft drink consumption and aggression, depression, and suicidal thoughts in adolescents, the current investigators sought to examine possible links between sodas and negative behaviors in young children.
After adjusting for sociodemographic factors, results showed that the participants who drank at least 1 soda per day had a 0.74-point higher mean aggressive behavior score (95% confidence interval [CI], 0.1 – 1.4) than those who drank no soda (P < .05).
Consuming 2, 3, or 4 or more servings was associated with even higher mean aggression scores of 1.8, 2.0, and 4.7, respectively (all, P < .05).
Those who drank 4 or more daily servings also had higher mean scores on the attention problems (1.7; 95% CI, 1.0 – 2.4) and withdrawn behavior (2.0; 95% CI, 0.8 – 3.1) subscales (both, P < .05).
Adjusting for consumption of candy/sweets or fruit juice, television viewing, probable maternal depression, intimate partner violence, paternal incarceration, and obesity in separate analysis of 1868 of the participants still showed an association between high levels of soda consumption and negative behaviors.
Are All Sodas Equal?
Further analyses showed that the children who consumed the highest levels of soda were more than twice as likely to destroy others’ belongings (odds ratio [OR], 2.54), physically attack people (OR, 2.28), or get into fights (OR, 2.12).
“In this large sample of 5-year-old urban US children, we found strong and consistent relationships between soda consumption and a range of problem behaviors, consistent with the findings of previous studies in adolescents,” write the investigators.
However, future studies “in other populations of children and of a longitudinal nature may provide further insight into the relationship between soda consumption and child behavior,” they add.
When asked, Dr. Suglia reported that the study did not ask about the specific types of soda consumed, such as whether they included diet or noncaffeinated drinks.
J Pediatr. Published online August 15, 2013. Full article
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