Researchers have revealed that pregnant women who gorge on fatty chips are putting their unborn baby in just as much danger as if they were smoking.
Gorging on a junk food diet of chips, crisps and biscuits while pregnant can damage the unborn child's health, who could be born weighing far less than average, the Daily Express reported.
Scientists said that the reason is a chemical called acrylamide, which is in a lot of regularly eaten foodstuffs and coffee.
As part of study across Europe, scientists studied 186 women in Bradford and found that their babies had the highest levels of acrylamide of all.
"It was clear that the largest source is from chips," Dr Laura Hardie of the University of Leeds, said.