ALT Environmental impact scores per 100 g of products. Beef and Lamb (at far right position) as the scientific consensus shows, has the highest environmental impact. Points indicates mean impact of all products categorized to the Aisle, and error bars indicate ±1 SEM. A product with an estimated environmental impact score of 10 has 5 times the impact of a product with a score of 2, but half the impact of a product with a score of 20. Aisles are colored by food type. Food types are shown from lowest median environmental impact on the left to highest median environmental impact at the right. Aisles within food types are ordered from lowest to highest mean environmental impact score. When plotting, Aisles containing similar products were condensed for visibility and clarity. For instance, the Aisles “Fresh Vegetables” and “Frozen Vegetables” were condensed into “Vegetables.”

ALT Environmental impact score and nutrition impact score per 100 g of multi-ingredient food products. Colors indicate food types. Points indicate the environmental impact and nutrition impact scores of Aisles not denoted by a text label.

ALT Radar plots indicating the variation in impacts per 100 g of product within each retail Aisle. Solid vertical and horizontal lines separate radar plots into one of eight food types, which are further differentiated by color. Within each food type, radar plots are ordered such that the Aisle with the lowest mean environmental impact score and nutrition impact score are in the upper left, and the Aisle with the highest environmental and nutrition impact are in the bottom right. In each radar plot, the black line indicates the mean impact of products in the Aisle while the shaded area indicates the 5th to 95th percentile impacts of the products within that Aisle. Inner and outer bounds of the radar plot correspond with 5th and 95th percentile impact of all food products available at Tesco, respectively. For the four individual nutrition indicators, the values used for plotting are the number of points assigned to each product for that food component using the NutriScore algorithm.

ALT Variation in environmental and nutritional impact of sausages, clearly showing plant-based ones are lowest in environmental impacts. Each point indicates a single food product, is colored to indicate different food types, and partially transparent to show overlaps of food products with similar environmental impact and nutrition impact scores.