Kids' Obesity Linked to Ear Infections

Altered sense of taste may result in preference for unhealthy foods, studies suggest

By Steven Reinberg
HealthDay Reporter

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THURSDAY, Aug. 14 (HealthDay News) -- Damage caused by chronic ear infections in children may alter their sense of taste, making fatty and sweet foods more desirable and increasing the risk of obesity.

That's the conclusion of four new studies presented Thursday at the American Psychological Association's annual meeting in Boston.

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In the first study, Kathleen Daly, a professor of otolaryngology at the University of Minnesota, found that "middle ear nerve damage may play a role in affecting taste in children with recurrent ear infections or chronic ear disease who get [drainage] tubes. This damage may increase intake of fattening foods."

For the study, Daly's team followed children from birth to 2 years of age who had been treated with tubes for ear infections.

"There was a trend, but not significant, for recurrent ear infection to lead to overweight," Daly said. "Other studies have reported a similar relationship between ear infections and overweight. We did not find evidence for the reverse hypothesis: larger and heavier children were more prone to ear infections and tubes than smaller and lighter children."

In the second study, led by John Hayes of Brown University, researchers found that among 110 middle-aged women with a sense of taste consistent with nerve damage, those who preferred sweet and high-fat foods tended to have larger waists.

"Surprisingly, we found that the single best predictor of body weight was not how much saturated fat they took in and not how often they ate high-fat foods, but was how much they liked high-fat and sweet foods," Hayes said.

Hayes noted that taste can vary genetically, but also through exposure to environmental changes. "Particularly with damage to the taste system and we think this happens from ear infections," he said.

Another study by Hayes' group found that preschoolers with a history of severe ear infections ate fewer vegetables, more sweets and tended to be heavier.

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