Grocery price inflation in Great Britain edged down slightly to 5.0% in the four weeks to 10 August, according to data from Worldpanel by Numerator, the market research firm formerly known as Kantar. That was a small fall from July’s 5.2%, but analysts warned the level remains high enough to alter household budgets and shopping choices. Worldpanel also recorded take‑home grocery sales growth of roughly 4.0% over the same period.

Fraser McKevitt, head of retail and consumer insight at Worldpanel by Numerator, said in the firm’s report that “we’ve seen a marginal drop in grocery price inflation this month, but we’re still well past the point at which price rises really start to bite and consumers are continuing to adapt their behaviour to make ends meet.” He pointed to a reduction in out‑of‑home spending: visits to casual and fast‑service restaurants fell by about 6% in the three months to mid‑July year‑on‑year, a sign that squeezed household finances are reshaping leisure as well as shopping.

The data shows shoppers are increasingly balancing necessity with small treats. Branded grocery sales grew by 6.1% in the period, outpacing own‑label growth of 4.1%, and branded products accounted for 46.4% of total grocery spending. Premium own‑label ranges also posted strong growth, up around 11.5%. Worldpanel singled out categories such as personal care, confectionery, hot drinks and soft drinks where branded items dominate spending.

Convenience and speed continue to influence purchase patterns. The average home cook now spends almost three minutes less preparing the evening meal than in 2017, at just under 31 minutes, the analysis found, and sales of microwaveable rice, ready meals and chilled pizza rose by about 8%, 6% and 5% respectively. The report also flagged a cultural staple: nearly one billion fish fingers were sold in the past year, with more than half of households buying a box ahead of the product’s 70th anniversary in September.

Retailer performance underlines the competitive shake‑up of the supermarket sector. Lidl and Ocado were tied as the fastest growing grocers over the 12 weeks to 10 August, with sales up about 10.7% year‑on‑year. Tesco recorded its largest monthly market share gain since December 2024, its share rising by 0.8 percentage points to 28.4% as sales grew roughly 7.4% in the period; Worldpanel’s figures imply Tesco’s 12‑week sales were in the region of £10.1bn. Sainsbury’s also posted mid‑single‑digit sales growth, while Asda and the Co‑op saw sales fall year‑on‑year. Discounters continued to press up the rankings, closing the gap on the traditional big four.

The composition of price movements across categories was mixed. Worldpanel and industry coverage noted notable price rises in items such as chocolate, fresh meat and coffee during the period, contributing to the persistence of grocery inflation even as the headline rate eased a touch.

For consumers and retailers alike the picture is one of cautious adaptation rather than rapid relief. Although inflation has eased from its summer peak, the modest decline to 5.0% still leaves grocery costs materially above most households’ comfort levels, prompting substitutions between own‑label and branded goods, greater appetite for quick‑prep meals, and reduced spending on eating out. The Worldpanel figures relate to the four weeks to 10 August and to three‑month comparisons up to mid‑July, placing the changes squarely in the peak summer trading period and offering an early read on how households are responding to ongoing price pressure.