Introduction

Starting October 2025, the UK government will impose a watershed ban on junk food advertising before 9 pm, a move that will significantly alter how food and beverages brands market to consumers. The ban, covering both TV and paid online ads, targets high-fat, salt, and sugar (HFSS) products to address rising childhood obesity.

According to government statistics, more than one in five children in England are classified as overweight or obese by the time they start primary school—a figure that climbs to more than one in three by the time they leave. These numbers highlight a growing public health crisis that is increasingly linked to the pervasive influence of advertising.

UK’s public health minister, Andrew Gwynne, emphasised that these restrictions protect children from ads that “influence their dietary preferences from a young age.” Evidence supports this concern; research shows that children exposed to high volumes of junk food advertising are likely to make unhealthy food choices, contributing to poor eating habits early in life. Brands have long relied on marketing to drive consumerism, but the upcoming ban marks a decisive shift in the relationship between advertising and consumer health. As the government moves to regulate how food is promoted, brands must rethink their strategies and explore new ways to engage with audiences in a more health-conscious marketplace.

This isn’t the first time the UK government has introduced measures to reduce junk food consumption. The sugar tax of 2016 successfully prompted a reformulation of many sugary beverages, cutting 45,000 tonnes of sugar from drinks sold in Britain by 2019. With stricter advertising rules on the horizon, we’re likely to see further changes in how products are marketed—and even manufactured—as companies adjust to a regulatory landscape that places public health at the forefront. The question is no longer whether brands will adapt but how they will do so in a world where consumer behaviour and advertising standards are evolving rapidly.

Obesity in the UK

The issue of childhood obesity in the UK is complex and urgent. It is driven by various factors that extend beyond individual choices. Dietary habits are shaped by societal influences, with advertising playing a major role in promoting unhealthy food.

Children are frequently exposed to persuasive advertising that glamorises junk food, complicating efforts by parents and schools to promote healthier alternatives. Addressing childhood obesity requires not only personal responsibility but also systemic change, starting with reducing the exposure of young people to harmful food marketing practices.

The link between advertising and childhood eating habits is well-documented. Studies have shown that children exposed to high volumes of junk food advertisements are more likely to develop unhealthy eating preferences. Research published by Public Health England highlights that advertising significantly shapes children’s food choices, often leading them to favour products high in fat, salt, and sugar. This direct correlation between ad exposure and dietary behaviour supports the UK government’s decision to introduce more stringent regulations on how unhealthy foods are marketed to young audiences.

Consumerism has long been driven by targeted advertising, and the food and beverage industry has historically capitalised on this. In the UK, junk food ads are a powerful tool in influencing consumer behaviour, especially among younger audiences. Fast food, sugary drinks, and processed snacks are often portrayed as convenient, fun, and affordable, making them appealing to children and their parents. The repetitive nature of these ads reinforces unhealthy food choices, contributing to the nation’s growing obesity crisis. By limiting children’s exposure to junk food advertising, the new regulations aim to disrupt this cycle of consumerism that has favoured quick, unhealthy options over balanced, nutritious meals.

Government Interventions: Global Case Studies
 

Government interventions in advertising have a track record of significantly altering consumer behaviour and reshaping industries. In the UK and globally, regulations on tobacco, sugar, and alcohol advertising have shown the power of targeted policies to reduce harmful consumption. These examples offer important lessons for the upcoming UK junk food advertising ban.

Tobacco Advertising Ban (UK, 2003)

The UK’s ban on tobacco advertising in 2003 was a pivotal moment in public health policy. Before the ban, tobacco ads were pervasive across multiple media platforms, promoting smoking as a lifestyle choice. Once the ban took effect, smoking rates began to decline, especially among younger demographics. 

According to data from Cancer Research UK, smoking rates among adults dropped from 27% in 2003 to 16% by 2018, and by 2022, this figure had further decreased to 12.9%, showing a continued decline in smoking prevalence. The restrictions pushed tobacco companies to focus on non-traditional strategies like brand sponsorships and retail displays until further regulations closed these loopholes. The industry’s adaptation underscored the resilience of brands under strict marketing limits, although their direct influence on consumer habits was notably reduced.

Sugar Tax (UK, 2016)

In 2016, the UK introduced a sugar tax to reduce the sugar content in soft drinks. The levy prompted major beverage companies to reformulate their products to lower sugar levels to avoid the tax. By 2019, Public Health England reported that the sugar content in affected drinks had dropped by 28.8%, removing roughly 45,000 tonnes of sugar from the UK’s beverage supply. This regulatory intervention successfully shifted consumer preferences towards healthier, lower-sugar drinks as brands introduced new product lines and marketed reformulated versions of existing drinks. The sugar tax demonstrated that fiscal policies and public health campaigns could directly influence industry practices and consumer behaviour.

Alcohol Advertising Restrictions (Norway)

Norway has long imposed strict regulations on alcohol advertising, including a near-total ban on television ads for alcoholic beverages. These restrictions, implemented to curb alcohol consumption, have been credited with contributing to a gradual decline in drinking rates, particularly among younger populations. A study from the Norwegian Institute of Public Health noted a marked decrease in alcohol consumption among youth over the past two decades, with the market shifting toward low-alcohol and alcohol-free alternatives. The success of Norway’s restrictions highlights how limiting advertising can directly affect consumption habits, pushing brands to innovate within the bounds of the law.

Portugal’s Junk Food Restrictions

In 2019, Portugal introduced restrictions on unhealthy food advertising aimed at children under 16, banning ads for sugary snacks, fast food, and soft drinks during specific TV programs. The regulations resulted in 94% compliance in TV advertising, according to the Directorate-General for Health (DGS). However, online advertising remains challenging, with infractions still being detected, especially on digital platforms. Although these restrictions have contributed to a decrease in children’s exposure to unhealthy food ads, violations in digital advertising have highlighted the need for stricter enforcement online. Furthermore, some brands have responded by reformulating products like yoghurts and cereals to comply with the new health standards. The early results suggest that targeted advertising restrictions can influence consumer behaviour, steering younger audiences toward healthier food choices.

European Union

In 2023, the European Union published a report recommending that member states adopt similar restrictions on junk food advertising aimed at children across all media platforms. The EU’s push aligns with growing global recognition of the role that advertising plays in childhood obesity. Although the policy has yet to be formally adopted by the European Parliament, if implemented, it would likely follow the trend seen in countries like the UK and Portugal. The EU’s recommendations suggest that reducing exposure to junk food ads could play a key role in shaping healthier food environments for children across Europe, with ripple effects likely to be felt in consumerism and brand strategy.

Defining Junk Food Under the UK Ban

The UK government’s upcoming ban on junk food advertising hinges on a clear classification system to determine which products fall under its restrictions. The focus is on products considered high in fat, salt, and sugar (HFSS), with a two-part classification system to identify which items are deemed “junk food” under the ban.

Criteria for HFSS Products

Products categorised as HFSS are based on a scoring system developed by the UK government, which evaluates their nutritional content. The classification process involves:

1. Nutritional Content Analysis: Each product is scored on its levels of fat, salt, sugar, and protein. Higher scores indicate a product is “less healthy” and thus subject to advertising restrictions.
2. Categorical Classification: Products are then grouped into specific categories commonly associated with unhealthy diets. These categories primarily target foods and beverages that contribute to childhood obesity.
   

Impact on the Food and Beverage Industry

The upcoming UK ban on junk food advertising is set to impact the food and beverage industry both immediately and long-term. For brands that rely heavily on advertising high-fat, high-sugar, and high-salt (HFSS) products, this regulatory shift will force a significant rethink of their marketing strategies while also spurring innovation in product reformulation.

Short-Term Effects

The ban will fundamentally reshape how brands approach their advertising efforts in the short term. With TV and paid online ads restricted before 9 pm, companies must pivot to non-traditional marketing channels. This includes:

• Social Media and Influencer Marketing: Brands are likely to invest more heavily in organic and influencer-driven campaigns on social media platforms, where paid ad restrictions are less stringent, provided they don’t promote HFSS products directly to children.

• Experiential and Content Marketing: Companies will increasingly turn to experiential marketing events and content-driven campaigns, focusing on engaging consumers through brand experiences emphasising health, wellness, and lifestyle rather than direct product promotion.

• Targeting Adult Consumers: Another strategy will be shifting the focus of advertising campaigns to target adult audiences during post-watershed hours, allowing brands to maintain visibility without violating the ban.

However, brands that fail to adapt quickly may face reduced market visibility as they lose the ability to target younger audiences directly through traditional channels.

Long-Term Effects

Over time, the ban will push brands toward product reformulation and innovation. Reformulating existing products to meet healthier nutritional standards allows companies to avoid being classified as HFSS and continue advertising across all platforms. As consumer demand increasingly trends toward healthier options, brands that innovate in this space stand to benefit from the shift.

• Healthier Alternatives: Companies will explore creating new product lines or improving the nutritional content of their core offerings by reducing sugar, fat, and salt. This may lead to a wave of healthier snack options, ready meals, and beverages that meet government standards while appealing to health-conscious consumers.

• Building Brand Loyalty: Brands that successfully reformulate products and introduce healthier alternatives can build long-term loyalty among consumers, particularly parents seeking more nutritious options for their children.  
  

Conclusion

The UK Junk Food Ad Ban represents a significant turning point for the food industry, with implications that extend beyond advertising restrictions. By targeting HFSS promotions, the initiative aims to drive healthier consumer choices and combat rising obesity rates. This change is poised to reshape marketing strategies, encourage product reformulation, and present new opportunities for health-oriented brands while posing challenges for SMEs reliant on traditional junk food sales. If successful, the ban could influence global regulatory practices and lead to a broader transformation of the industry, ultimately fostering a healthier food environment for all. The food sector’s ability to adapt and innovate in response to these changes will be key to navigating this evolving landscape and meeting the demand for improved public health standards.