Tesco and Sainsbury’s have marginally lost their share of the UK grocery market, according to the latest figures from research analysts TNS Worldpanel.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more


Tesco and Sainsbury’s grew sales by 5% and 4% respectively during the 12 weeks to 15 June but TNS said the UK grocery sector as a whole grew by 6%.


Morrisons, the UK’s fourth-largest grocer, saw sales rise by 8.1%, while Asda’s sales were up 7.5%, according to TNS.


Edward Garner, director of research at TNS, pointed to “very strong year-on-year growths” at discount retailers Aldi and Lidl, which saw sales rise 21% and 13% respectively.


Tesco, however, still enjoys double the market share of its nearest rival Asda, according to TNS. Tesco accounts for 31.2% of UK grocery sales, TNS said, while Asda’s share stands at 16.8%.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

Meanwhile, Garner added that, although some food prices in the UK had “rocketed”, food inflation in the UK was not standing at 20% as had been reported.


“TNS believes that it is more relevant to look at the average household shopping basket, taking account of sales levels and promotions and, as a result, state that price inflation in grocery stood at 4.6% for the 12 weeks ending 20 April,” Garner said.

Just Food Excellence Awards - Nominations Closed

Nominations are now closed for the Just Food Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
Winning five categories in the 2025 Just Food Excellence Awards, Centric Software is setting the pace for digital transformation in food and FMCG. Explore how its integrated PLM and PXM suite delivers faster launches, smarter compliance and data-driven growth for complex, multi-channel product portfolios.

Discover the Impact