New Zealand would be hard-pressed to follow Britain's approach to tackling obesity, with our lax advertising rules.
The UK has launched a healthy eating campaign, backed by the Prime Minister after his diagnosis of Covid-19.
The strategies include a ban on TV and online ads for unhealthy food before 9pm, and restrictions on store food placement.
Auckland University professor of population nutrition and global health Boyd Swinburn told Kerre McIvor we're a long way behind with regulating advertising.
"We saw over Covid-19 lockdown quite an expansion of junk food marketing and taking advantage of people's vulnerability."