Does childhood obesity all come down to the genes? Researchers at Children’s Hospital of Philadelphia (CHOP) and the University of Pennsylvania have pinpointed a specific genetic variant that appears to play a significant role in a child’s risk of becoming overweight or obese — and it all comes down to a single “letter” change in the genetic code.

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Philadelphia , Pennsylvania , United States , University Of Pennsylvania , Daniela Dimitrova , Cell Genomics ,