|Women who gain more than 40 pounds (18 kg) during pregnancy are nearly twice as likely to deliver a heavy baby as those who gain the recommended amount, according to new research.
The study conducted by researchers at the Kaiser Permanente Center for Health Research in Portland, Oregon, involved more than 40,000 American women.
It was discovered that around one in five women gain above the recommended amount of weight during pregnancy, thereby doubling their chances of delivering a baby that weighs nine pounds (four kg) or more.
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