Are ear infections linked to obesity?

They say the best way to a man's heart is through his stomach, but the best way to his stomach may be through his ears. New research suggests that ear infections in early childhood have a profound effect on obesity later in life.

Researchers presented evidence that suggests children who suffer from repeated middle ear infections, known as otitis media, are much more likely to be overweight as children and as adults.

University of Florida School of Dentistry ear, nose and throat researcher Linda Bartoshuk, PhD, presented her study results Thursday during APA's convention. She found that males in particular with a history of otitis media are almost twice as likely to be overweight and obese than men who have no history of the condition.

"This is not a small effect," she said.

The same pattern appears in women, but to a lesser extent.

How could an ear infection influence someone's weight? An important taste nerve, the chorda tympia, runs from the tongue up through the middle ear and finally into the brain. If the middle ear is infected, the nerve can get damaged. The effect is that certain tastes, especially sweets and fats, get intensified, leading to less healthy eating behaviors.

"Over time, a history of ear infection contributes to a more energy-dense diet" and consequently, higher rates of obesity, le graduate student Derek Snyder.

More coverage

Watch the WLS-Chicago story

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Read the HealthDay News wire story

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Read the Pioneer Press story

Read the BBC story

Read the APA press release