Eddie Gershon, spokesman for restaurant JD Wetherspoon, said they were open and honest with their customers about the salt content of their meals.

BBC: Hidden salt 'present in popular restaurant meals'

However the first minister said that although salt stocks did run low, not a single local authority ran out of salt and all major roads were all kept open.

BBC: Scrutiny of the first minister committee

These were likely to include "further steps to conserve salt" to ensure the Highways Agency and local authorities could keep roads open.

BBC: Transport statement