Kantar Worldpanel Dramatically Expands UK Grocery Panel

Consumer behaviour specialist Kantar Worldpanel is significantly increasing the size of its UK grocery panel to 55,000 households, marking an 83% expansion that will capture three times as many store visits compared to the previous sample size.

The enhanced panel will continue to track five years’ worth of shopper behaviour data, with the larger sample expected to improve coverage across hard-to-measure retail environments such as discount stores, online platforms, and convenience outlets like corner shops.

This expansion comes at a time when the UK grocery market is undergoing rapid change. Grocery price inflation has edged higher in recent months, placing additional pressure on household budgets. In response, retailers are intensifying their promotional activity, with promotional sales now accounting for nearly a third of all grocery spending—the highest level recorded in recent years.

Users of Kantar’s insights can expect to benefit from the expansion from 2026, with the UK panel growth forming part of a wider global rollout.

Chris Morley, Managing Director at Kantar Worldpanel UK and Ireland, commented: “We are adding significant depth to our behavioural insights to ensure unparalleled understanding of real consumer decisions.

The panel enhancement will bring even greater precision and granularity to our data, empowering our clients with a new level of clarity in the identification of growth opportunities.”

Source: Research Live