Data from Kantar has revealed that a summer of good weather boosted supermarket group Sainsbury’s, with sales growth of 4.9%, outstripping the market.

John Coll, of Kantar Worldpanel, said: “Sainsbury’s has continued to grow ahead of the market over the past 12 weeks, achieving sales growth of 4.9%.

"It benefitted from its support of the Paralympics last year and its growth has continued since then.
"It now holds 16.5% of the grocery market and it is the only one of the big four supermarkets to make gains in share this period.”