A study from the Children's Hospital of Philadelphia points to two genes common among obese kids, HealthDay reports.
"We see a clear genetic signature to childhood obesity, showing that there is more than just an environmental component to this disease," Struan Grant, senior author of the research, said at an April 5 press conference.
Although known genes have been linked to adult obesity and also to extreme forms of childhood obesity, the newly identified genes confer only a modest risk of developing common childhood obesity. But they are "very common in the population," Grant added in a telephone interview.
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