Barricades could be put up to stop children from seeing junk food advertising online

Health Minister, David Clark and Food Safety Minister, Damien O'Conner, have confirmed a raft of voluntary changes in junk food advertising.

The junk food industry and advertisers are considering the use of age verification systems - which are sometimes used by alcohol websites.

Advertising-free zones are also being proposed around primary and intermediate schools.

The Ministers also want to carry out a national children's nutrition survey - last done in 2002 - to understand what kids are eating.