Pregnancy a heavier burden than previously thought

Substantial weight gain may be avoided by brief antenatal advice

Pregnancy-related weight gain is more widespread and substantial than previously thought, Australian research shows.

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One in five women increase from normal weight to overweight or obese BMI categories between their first and second pregnancies, a Victorian study of nearly 20,000 women has found.

And weight gain of more than four BMI units (kg/m2) occurred in 7.5% of women with normal weight and 10.5% of overweight women, University of Melbourne researchers showed.