Skip to main content

Junk food marketing restrictions come into force

A variety of fast food and snacks, including burgers, chips, fried chicken, crisps, biscuits, colourful sweets, pastries, and a glass of cola, arranged on a light surface against a grey background.

Today – 5 January 2026 – the UK government’s long-awaited junk food advertising restrictions come into force

Author: World Cancer Research Fund
Published: 5 January 2026

After years of delays, a law to ban ads for unhealthy food and drink before 9pm on TV and across online platforms, will start.

Commenting on the ban, Dr Giota Mitrou, Executive Director of Research and Science at World Cancer Research Fund (WCRF) International, said:

“Marketing is a well-established driver of consumption of unhealthy foods, and children – who are the primary targets of junk food advertising by large corporations – are particularly vulnerable. These long-awaited restrictions therefore mark an important step forward in protecting children’s health.

“However, we must recognise the fact that these measures have not only been severely delayed, but also significantly weakened by broad exemptions for brand advertising.

“The scale of childhood obesity crisis demands greater and more far-reaching action. The latest data shows that 10.5% of children in Reception and 22.2% of children in Year 6 are living with obesity, with prevalence more than double in the most deprived areas compared with the least deprived.

“The UK government must expand the range of products in scope of the ban, removing brand exemptions, and extend protections to the outdoor environment. We must not let large corporations’ water down and undermine efforts to give all children the healthiest start.

World Cancer Research Fund remains committed to working with the government to address obesity, which is a cause of at least at least 13 types of cancer.”

Delay to the junk food marketing restrictions

In 2020 – as part of its Obesity Strategy – the government under Boris Johnson promised to implement a ban on products that were high in fat, salt and sugar (HFSS) online and before 9pm on TV, saying it would come into force by 2023.

However, under pressure from industry, the enforcement was delayed while a further review was undertaken.

These delays mean that today’s implementation will be three years later than originally promised, and severely weakened.

Research has demonstrated that children eat significantly more calories in a day, after watching just 5 minutes of junk food advertising.

Building Momentum report

In 2020, World Cancer Research fund produced its Building Momentum report showing the lessons of implementing robust restrictions of food and non-alcoholic beverage marketing to children