Treating women with gestational diabetes can reduce their child's risk of becoming obese, research suggests.
A study of 9,439 mothers found that as a pregnant woman's glucose levels increase so do her unborn child's risk of obesity.
However, if women's gestational diabetes is treated this can cut the risk of their child growing up to be obese to that of a mother with normal glucose levels.
Gestational diabetes is a condition where pregnancy triggers insulin resistance and raises women's blood glucose levels.
"The good news for pregnant women is that by treating gestational diabetes, your children's risk of becoming overweight or obese drops considerably," says study author Teresa hillier.
"My advice to pregnanct women is three-fold: Discuss gestational diabetes screening with your doctor, usually between weeks 24 and 28 of pregnancy; if you have gestational diabetes, work with your physician to treat it, and still with the treatment during your pregnancy.
"It's the best thing you can do to reduce your child's risk of obesity."