Half of UK children "drink" almost five litres of cooking oil every year as a result of their pack-a-day crisp habit, experts warn.
Nearly a fifth of children eat two packets of crisps per day, says the British Heart Foundation.

Its Food4Thought campaign aims to expose hidden salt, fat and sugar in common foods.

Pictures of a girl drinking cooking oil with the caption "What goes into crisps goes into you" will appear nationwide.

A typical 35g bag of crisps contains about two-and-a-half teaspoons of oil.
A larger 50g pack contains three-and-a-half.

Figures from Mintel reveal that we eat a tonne of crisps every three minutes in the UK.

This would be enough to fill a telephone box every 43 seconds and an Olympic size swimming pool every 14 hours.

Another recent survey found nearly three quarters of mothers feed their children ready meals or takeaways more than three times a week.

By 2020, it is thought that a quarter of UK children will be overweight.
BHF is calling for a ban on the marketing of junk food products to children, particularly on the TV and the internet.

It also says cooking skills should be a compulsory part of schooling.

BHF medical director Professor Peter Weissberg said: "Daily unhealthy snacking is a worrying habit.

"Rising rates of childhood obesity and type 2 diabetes paint a particularly grim picture for the future.

"The campaign is about challenging our children about what's lurking in their snacks, takeaways and ready meals."