Nutri-Score

Nutri-Score
Name	Nutri-Score
Caption	The five-color scale from dark green (A) to dark red (E).
Country	European Union
Launch date	2017
Developer	Serge Hercberg
Based on	Food Standards Agency nutrient profiling system

Nutri-Score. It is a five-color, letter-coded front-of-pack labeling system designed to inform consumers about the overall nutritional quality of food products. Developed by a team of public health researchers, the system aims to simplify nutritional comparisons at the point of purchase. Its adoption has been promoted across several European Union member states as a tool to combat diet-related diseases.

Overview

The system classifies food and beverages on a scale from A to E, paired with a color spectrum from dark green to dark red. This visual design is intended to provide an immediate, intuitive assessment, similar to the energy efficiency label used for appliances. The algorithm underpinning the score synthesizes both favorable and unfavorable nutritional components into a single value. Proponents argue it helps guide consumers toward healthier choices within a given food category.

Development and adoption

The concept was pioneered by French epidemiologist Serge Hercberg and his team at INSERM and Université Sorbonne Paris Nord. It was formally adopted by the French Ministry of Health in 2017 following recommendations from Santé Publique France. Subsequently, several nations, including Belgium, Germany, Spain, and the Netherlands, have implemented or endorsed its voluntary use. The system has been the subject of extensive debate within the European Commission regarding a potential harmonized front-of-pack labeling scheme for the entire European Union.

Calculation method

The algorithm assigns points based on the content per 100 grams or 100 milliliters. Negative points are calculated for energy, saturated fat, sugars, and sodium, referencing thresholds established by the World Health Organization. Positive points are awarded for the proportion of fruit, vegetables, pulses, nuts, and for contents of dietary fiber and protein. The final score results from subtracting the positive points from the negative points, determining the letter grade. Specific adjustments exist for categories like cheese, fats, and beverages.

Scientific basis and reception

The underlying nutrient profiling model is derived from the Food Standards Agency system used in the United Kingdom. Its development was informed by extensive epidemiological studies linking dietary patterns to health outcomes like cardiovascular disease and obesity. Major public health organizations, including the World Health Organization Regional Office for Europe, have expressed support. However, some national food safety agencies and industry groups have criticized the methodological approach, leading to ongoing scientific discourse in journals like The Lancet and American Journal of Clinical Nutrition.

Impact on consumer behavior

Studies conducted by research institutes such as INRAE in France and the Max Planck Institute in Germany have investigated the label's effectiveness. Research generally indicates that the Nutri-Score improves the nutritional understanding of consumers compared to more complex labels like the Reference Intakes. It has been shown to influence purchasing intentions, particularly in reducing the selection of products with low grades. Its impact is often measured in simulated supermarket environments and through large-scale cohort studies.

Comparisons with other systems

Internationally, it competes with alternative labeling schemes. The Chilean warning label system uses black octagons to denote high levels of critical nutrients, a model also adopted by Uruguay and Peru. The United Kingdom utilizes a voluntary traffic light label that displays individual nutrients. The Health Star Rating system, used in Australia and New Zealand, also provides a summary score but allows for product category adjustments. Each system reflects different public health philosophies and faces distinct political and industrial challenges.

Controversies and limitations

Primary criticism stems from certain food industry sectors, notably the Italian Ministry of Agricultural, Food and Forestry Policies, which argue it unfairly penalizes traditional products like Parmigiano-Reggiano and olive oil. Some nutrition scientists contend that the single summary score can oversimplify complex nutritional information. Legal challenges have emerged regarding its voluntary status and potential effects on the European Single Market. Debates also focus on whether the algorithm should be periodically revised to incorporate newer dietary science.

Category:Food labeling Category:Nutrition Category:Public health