Expat insurance customers who are expecting need to realise that obesity is one of the most dangerous conditions to have in pregnancy.
This is the advice from baby health charity Tommy's, whose campaigns manager, Jacqui Clinton, noted that a high body mass index can lead to complications in pregnant women.
These include a higher risk of miscarriage, premature birth and stillbirth, she pointed out.
"Babies born to obese mothers are also more likely to have a high birth-weight and future health problems associated with obesity, including cardiovascular problems and diabetes," she explained.
It is best if prospective mothers are at a healthy weight by the time they conceive, "but, as obesity poses one of the biggest threats to maternal and foetal health in the UK today, promoting healthy weight management in pregnancy through eating well and keeping active is vital if we are to succeed in helping more babies to be born healthy".
Ms Clinton's remarks come in light of research suggesting that one in 20 pregnant women in the UK are severely obese.