Children born to obese and overweight mothers are more likely to die early of heart disease, a study has found.
It is not known how much of the link is down to genetics, influences in the womb or later lifestyle.
But the authors say their findings, in the British Medical Journal, are of “major public health concern”.
One woman in five in the UK is obese at their antenatal booking appointment.
The analysis included 28,540 women whose weight was recorded at their first antenatal check-up and their 37,709 children now aged between 34 and 61.