Pupil: 'I won't walk 800m to chip shop'
Junk food outlets should be banned within 800m of schools because ''children don't walk beyond in terms of junk food", the chair of the London health commission said.
Speaking on the Today programme, former health minister Lord Darzi said a ban would go some way to preventing unhealthy diets in children.
The BBC's Zoe Conway went to a school in central London find out how far pupils were prepared to walk to buy fast food.
16 Oct 2014