These two tables present the share of food calories purchased for in-home consumption from the 11 largest grocery retailers, broken down by nation (Great Britain, England, Wales, and Scotland) and further stratified by household characteristics.

• The first table displays the percentage of calorie purchases by annual household income groups, ranging from £0–£19,999 up to £60,000+. Across all income levels and all nations, the data consistently shows that over 90% of food calories are sourced from these 11 major supermarkets. While the share is slightly lower in the lowest income bracket (ranging from 91% in Wales to 93% in England/GB) compared to the highest income bracket (96–97%), the overarching trend remains consistent: regardless of income, the vast majority of food shopping is concentrated within these major retailers.
• The second table mirrors this analysis but categorises households by social class (ranging from AB to DE). Similar to the income data, the results show that over 90% of calories are purchased from the top 11 supermarkets across every social grade and nation. The figures range from 92% for social class DE in Wales and Scotland to 97% for social class AB in Great Britain and England.

Both tables collectively demonstrate that while there are minor variances based on income and social grade, the reliance on the top 11 major grocery retailers is uniformly high (at least 91%) across all demographics and nations in Great Britain.

These two tables illustrate the social gradient in the healthiness of food purchased for in-home consumption across Great Britain, England, Wales, and Scotland, using the Sales-Weighted Converted Nutrient Profile Model (SWA cNPM) as the metric. Both tables demonstrate a consistent trend: as socioeconomic status increases, there is a small but steady improvement in the healthiness scores of food purchases.

• The first table breaks down these healthiness scores by annual household income levels, ranging from £0–£19,999 up to £60,000+. Across all four geographic regions, the data shows that households with higher incomes have slightly higher healthiness scores. In Great Britain, for example, the score rises marginally from 65 in the lowest income bracket to 67 in the highest. This pattern is mirrored across the individual nations, with scores typically ranging between 64 and 67, highlighting that while a gradient exists, the overall healthiness of purchases remains relatively similar across income groups.
• The second table presents the same analysis categorised by social class (AB, C1C2, and DE). This breakdown confirms the same trend observed in the income data: households in social class AB consistently record higher healthiness scores than those in social class DE. For instance, in Great Britain, the score is 67 for social class AB compared to 65 for social class DE. This slight social gradient is persistent across all nations, with scores across all classes and countries remaining within a tight range of 64 to 67.

Together, these tables underscore that while there is a small social gradient- where households from higher income or higher social grade groups tend to purchase slightly healthier food - the differences are modest, and the relative healthiness of food purchases is comparable across all demographic and national segments.

A table comparing healthiness scores (SWA cNPM) across different store types - such as supermarkets, fresh food stores, and drugstores for Great Britain, England, Wales, and Scotland. Fresh food stores consistently rank as the healthiest retail channel, while drugstores are the least healthy; this pattern remains broadly consistent across all four nations.