Avoiding runny egg yolks, steering clear of deli meats, not eating soft cheeses - the lists of things "not to do" when you're pregnant can seem overwhelming.
And while many may look at the dietary requirements as a bit of overkill, the report in today's paper that one in four women giving birth at Lakes District Health Board facilities are still smokers has to raise a few eyebrows.
The implications of smoking while pregnant are well documented and can range from a higher risk of premature birth to lifelong issues like learning problems.
Read more: Smoke signal for mums-to-be
The reasons behind those who continue to light up in pregnancy are likely to be varied.