Oatly’s ‘Post Milk Generation’ Trademark Rejected by UK Supreme Court

Oatly’s ‘Post Milk Generation’ Trademark Battle Concludes: UK Supreme Court Sides with Dairy Industry

The UK Supreme Court has unanimously ruled against Oatly in its long-running legal dispute with Dairy UK, effectively banning the Swedish company from trademarking or using the slogan “Post Milk Generation.” The decision, handed down on February 11, 2026, marks a significant victory for the UK dairy industry, which has been actively lobbying for stricter enforcement of dairy term protections.

The case originated in November 2019, when Oatly applied to register “Post Milk Generation” as a trademark for use on both T-shirts and its oat-based products. The UK Intellectual Property Office (IPO) initially approved the trademark in April 2021. Dairy UK, the trade association representing UK dairy farmers, subsequently challenged the registration, arguing that the use of “milk” in the slogan violated Article 78 of the 2013 Regulation, which governs the use of designations like “milk” and related terms.

Initially, Oatly successfully argued that its slogan didn’t infringe the regulation because it wasn’t presenting its product *as* milk, but rather describing the consumers – a generation moving away from traditional dairy. This argument resonated with the lower courts, which initially sided with Oatly. However, the London Court of Appeal reversed this decision, setting the stage for the Supreme Court review.

A Confusing Legal Rationale

The Supreme Court’s ruling, however, affirmed the Court of Appeal’s decision, effectively prohibiting Oatly from using the slogan. The court’s reasoning, as reported by multiple sources, has been described as perplexing. While Oatly repeatedly emphasized that its use of “milk” referred to the consumer base, not the product itself, the court dismissed this distinction. The court determined that the slogan’s use of “milk” was inherently problematic, regardless of Oatly’s intent.

Oatly argued that the slogan implicitly communicated that its product was milk-free. The court countered this by stating that because Oatly explicitly maintained the slogan didn’t describe the product, any implied message about the product’s composition was too “oblique and obscure” to be considered a clear description. As the court stated, the slogan describes a type of consumer – younger people turning away from dairy – rather than anything about the product itself.

This logic, as many observers have pointed out, creates a paradoxical situation. Oatly is penalized for clearly stating its intent *not* to mislead consumers, and for a slogan that demonstrably clarifies the product’s difference from traditional dairy. The court essentially ruled that Oatly couldn’t highlight the fact that it wasn’t milk, because it wasn’t directly describing the product as such.

Lobbying and Industry Protection

The ruling comes after years of lobbying efforts by Dairy UK to tighten regulations surrounding the use of dairy terms for plant-based alternatives. An investigation by Greenpeace’s Unearthed revealed that Dairy UK had been advocating for stricter enforcement of dairy term protections as early as 2017. The organization presented its concerns to a Business Experts Group panel and subsequently developed a briefing paper for the Food Standards Information Focus Group (FSIG).

Dairy UK’s position paper, submitted to the Department for Environment, Food & Rural Affairs (Defra) in November 2022, proposed restrictions that went far beyond simply banning the word “milk.” The proposals included prohibiting descriptors like “yoghurt-style,” homophones like “mylk,” and even phrases like “not milk.” These proposals faced opposition from 44 plant-based companies and NGOs, including Alpro, Quorn, and the Good Food Institute, who co-signed an open letter opposing the restrictions.

Implications and Concerns

The Supreme Court’s decision raises concerns about the potential for protectionist measures to stifle competition and innovation in the plant-based food sector. Oatly itself has characterized the ruling as anti-competitive and benefiting “Big Dairy.” The ruling effectively sets a precedent that could limit the ability of plant-based companies to clearly differentiate their products from traditional dairy, potentially hindering consumer choice and market growth.

The core issue isn’t simply about the word “milk,” but about the broader implications for how companies can communicate about their products. If a company cannot even state that its product is “not milk,” it raises questions about the limits of free speech and the extent to which courts will prioritize protecting established industries over fostering innovation. The ruling suggests a willingness to prioritize the interests of a traditional industry over the principles of fair competition and consumer information.

As Laurie Bray, a senior associate and trademark attorney at Withers & Rogers, noted, “It has taken the highest court in the land to decide once and for all whether a plant-based milk alternative can be branded as ‘milk’ and marketed as such.” The outcome, however, is unlikely to satisfy those seeking a level playing field in the rapidly evolving food and beverage market.