Lactalis challenge puts Nutri-Score before EU court

Lactalis has pushed France’s updated Nutri-Score system into a wider European legal test, after the French Council of State referred questions on the labelling scheme to the Court of Justice of the European Union.

The case concerns France’s revised Nutri-Score methodology, which was updated in 2025 and has sharpened classification pressure on several food categories. The French dairy group has challenged the legality of the amended system, with objections understood to include the way the algorithm handles portion size, nutrient assessment, and the treatment of milk, drinking yoghurts, and flavoured milk-based drinks within beverage-style scoring rules.

Nutri-Score remains one of Europe’s most visible front-of-pack nutrition labelling systems. It grades products from A to E using a colour-coded scale designed to help shoppers compare the nutritional profile of products within and across categories. Although voluntary at EU level, the system has become commercially significant in markets including France, Belgium, Germany, Spain, Luxembourg, the Netherlands, and Switzerland.

The dispute now goes beyond a single dairy company’s label position, because national voluntary schemes can still shape shelf presentation, retailer negotiations, public procurement expectations, and product reformulation across the single market. A score that sits outside mandatory EU labelling law can still carry the commercial force of a standard when it becomes widely adopted.

Dairy processors are especially exposed to classification changes because milk, yoghurt, drinking yoghurt, cheese, desserts, and flavoured dairy drinks do not behave as one simple nutritional category. Their nutrient density, protein content, fat content, calcium contribution, sugar level, portion size, and use occasion vary sharply. When a labelling algorithm compresses those differences into one score, technical and commercial pressure can move quickly through product development.

Reformulation in dairy is also more constrained than in many packaged-food categories. Reducing fat, sugar, or salt can affect texture, fermentation behaviour, mouthfeel, shelf life, sweetness balance, and protein stability. In cheese, butter, cultured products, ice cream, and dairy desserts, processing performance is tied closely to the composition that labelling systems seek to score.

Packaging decisions, reformulation programmes, retailer discussions, and export planning now sit within a labelling environment that is still legally unsettled. A product that scores acceptably under one national system may face consumer-perception pressure in another, particularly where retailers or public bodies favour front-of-pack labelling in merchandising, tenders, or health-led communication.

Rising dairy costs have already squeezed supply expectations across global markets, with processors balancing milk availability, product mix, and margin recovery. Labelling uncertainty adds another operational burden, because nutrition scores increasingly influence decisions that sit well beyond marketing. They affect recipe design, pack architecture, claims strategy, and the commercial relationship between branded manufacturers and retail customers.

The court process is likely to take time, but the direction of travel will be watched closely across Europe. If national schemes are given broad legal room to evolve, manufacturers may face a more fragmented labelling landscape. If their application is narrowed, public-health authorities may need clearer legal foundations for future updates.

Nutri-Score remains a regulatory signal rather than a settled technical standard, but its effect on product strategy is already substantial. The Lactalis challenge brings that tension into sharper focus, placing dairy classification, voluntary labelling, and EU market consistency into the same legal frame.