Brazil Pushes WHO to Restrict Ultra-Processed Food Marketing

Brazil Pushes WHO to Restrict Ultra-Processed Food Marketing — that, in short, is what Brasília is asking of the World Health Organization: global restrictions on how ultra-processed foods are marketed and sold, a move that could reshape what lands in grocery carts — and in front of young shoppers' eyes — everywhere.

In May 2025, Brazil presented a proposal at the WHO's 79th World Health Assembly in Geneva calling for limits on the marketing and sale of ultra-processed foods worldwide, according to Ingredients Network. France, Mexico and Uruguay backed the proposal at the time, and a few months later the WHO established a Guideline Development Group for ultra-processed foods, bringing together experts in public health, food safety, nutrition and economics to develop consumption guidelines.

From Geneva proposal to global rule: the timeline so far

In November, the WHO took the question to the Codex Alimentarius — the UN food-standards body — seeking a formal definition of ultra-processed foods. But this year the Codex Committee on Food Labelling removed the subject from its list of possible future work, a setback for anyone hoping a shared definition would arrive quickly. Despite that, the WHO says it will present a profiling model for regulatory measures on ultra-processed foods by the end of 2026, followed by consumption guidelines in 2028.

The push extends beyond the WHO. The United States is expected to propose a first federal definition and front-of-pack labelling for ultra-processed foods soon, and the European Commission has asked its advisory groups for a scientific and ethical assessment, with an opinion due in the first quarter of 2027.

The definition problem critics keep flagging

Dr Marcia Terra, secretary-general of the Brazilian Society for Food and Nutrition, said in an interview with the outlet that Brazil's WHO proposal is only one of dozens addressing the topic. In the National Congress alone, counting both houses, there are at least 26 bills covering ultra-processed foods — ranging from banning their sale and restricting their marketing to adding warning labels and stopping the government from buying them. The oldest dates to 2018 and the newest to this year, with more than half filed from 2025 onward. So far none has completed the regulatory process.

Terra's central concern is that each proposal carries its own definition of ultra-processed, which she says creates legal uncertainty: the inspector, the company and the judge would all read the same rule differently. Under common definitions — roughly, any food with an additive or an ingredient not used in a home kitchen — school-canteen items such as sweeteners for children with diabetes, gluten-free foods for children with coeliac disease and allergy-friendly products could fall under a ban, she warned. The impact on hospitals would be even more serious, she added, potentially restricting manufactured foods, juice cartons, supplements, gels and special formulas that keep patients safely nourished.

That definitional fog is why the Codex decision matters: without a shared global definition, translating marketing restrictions into law gets much harder. The term itself was coined in 2009 by Brazilian epidemiologist Carlos Monteiro and his University of São Paulo team, and later folded into the NOVA system, which sorts foods into four groups by level of processing. NOVA now informs dietary guidance across Latin America and has influenced Europe's Nutri-Score, which updated its algorithm to better align with NOVA. In France, Professor Serge Hercberg — part of the team behind the front-of-pack logo — told Ingredients Network that any effort aimed at reducing the consumption and promotion of ultra-processed foods "is beneficial from a public health perspective," and said France is fighting to inform shoppers about both a food's nutritional composition and whether it is ultra-processed.

Former FAO director-general José Graziano da Silva urged a more nuanced approach in the same debate. Foods designed to be cheap, long-lasting, hyperpalatable and widely marketed — often as substitutes for fresh foods — are not the same as products that have simply gone through industrial processes like pasteurisation, canning or fermentation, he argued. The overarching goal, he said, should be to make real food accessible, valued and the easiest choice for everyone.

Why the timing matters: new science and new rules

The policy push is landing alongside fresh evidence. On October 5, 2026, researchers at Virginia Tech's Fralin Biomedical Research Institute published a randomized crossover study in Nature Metabolism in which 57 healthy-weight adults ate ultra-processed and minimally processed meals matched on calories, carbohydrates, fats, proteins, water, salt and weight. The ultra-processed meals prompted greater insulin release and energy expenditure while burning less carbohydrate for fuel, and they produced different activity in brain regions tied to reward and motivation, according to the randomized crossover study published in Nature Metabolism and covered by MedicalXpress — even though participants valued the two meals the same.

Regulators elsewhere are moving in parallel. The United States' updated federal dietary guidance, released in January 2026, directs Americans to limit ultra-processed foods for the first time, prioritizing protein, whole foods, fruits, vegetables and whole grains instead, according to Food Navigator. Added sugars, artificial flavors, artificial sweeteners, petroleum-based dyes and refined carbohydrates should also be avoided, the guidance says.

The confusion is not just legal. A national survey commissioned by the American Heart Association found that while most Americans say they can spot ultra-processed foods, only about a third say they are very or extremely familiar with what the term means, as we reported earlier this week.

What it could mean for your cart — and your feed

Why does any of this matter to you? If the WHO delivers its profiling model by the end of 2026 as planned, countries will gain a shared template for marketing rules — for example, limits on ads aimed at kids, or on branding that makes a packaged snack look like fresh food. That could change what gets pushed in ads and on social feeds, where food marketing to young people is heaviest.

Some governments are not waiting for Geneva. California created a voluntary non-UPF seal that manufacturers can put on grocery packaging, as we reported when the seal was announced — an optional label for packages, while Brazil's push targets marketing rules worldwide.

But until the definition question is settled, any rule will face the same problem as Brazil's stack of domestic bills: deciding exactly which products count. The coming months — with the WHO model due by year's end and the European opinion expected in early 2027 — will show whether Brazil Pushes WHO to Restrict Ultra-Processed Food Marketing becomes more than a Geneva proposal, and whether the rules that follow are ones inspectors, companies and shoppers can actually use.