Antibiotics linked to child obesity

10:08 • 30.09.14
Science/tech

Young children who are given repeated courses of antibiotics are at greater risk than those who use fewer drugs of becoming obese, US researchers say, according to BBC News.

The JAMA Pediatrics report found children who had had four or more courses by the age of two were at a 10% higher risk of being obese.

But scientists warn this does not show antibiotics cause obesity directly and recommend children continue using them.

Many more studies are needed to explain the reasons behind the link, they say.

US researchers from the University of Pennsylvania and Bloomberg School of Public Health reviewed the health records of more than 64,500 American children between 2001 and 2013.

The children were followed up until they reached five years of age.

Almost 70% of them had been prescribed two courses of antibiotics by the time they were 24 months old.

But those who had four or more courses in this time were at a 10% higher risk of being obese at the age of five than children who had been given fewer drugs.

And the type of antibiotics they were prescribed appeared to make a difference too - those given drugs targeted at a particular bug were less likely to put on weight.

But those given a broad-spectrum antibiotic - that can kill several types of bacteria indiscriminately - were more likely to have a higher body mass.

Prof Charles Bailey at the University of Pennsylvania, said: "We think after antibiotics some of the normal bacteria in our gut that are more efficient at nudging our weight in the right direction may be killed off and bacteria that nudge the metabolism in the wrong direction may be more active."

And researchers say the study highlights that over prescribing inappropriate antibiotics could have a negative impact on child growth.
 

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