Aldi and Lidl have secured a further 800,000 customers despite rival supermarkets announcing rounds of price cuts to retain customers.

Nearly two-thirds of UK shoppers purchased items from the two discounters in the past four weeks, according to new figures from consumer intelligence company NIQ.

The data comes despite major supermarkets slashing prices on essential items to lure customers back from discounters.

Aldi was named the fastest-growing grocer with sales up 22.2% in the 12 weeks to August 12 as customers continue to look for bargains in the cost-of-living crisis. Sales at Lidl grew 16.5% in that period.

Tesco also grew its market share by 0.1% with sales growing 9.7%, largely driven by Clubcard offers and Aldi price match.

NIQ said total till sales at UK supermarkets slowed to 7.2% in the four weeks to August 12, which was the lowest growth rate since January. 

This is partly due to easing food inflation and poor weather, which may have deterred people from visiting stores.

NIQ warned that most consumers are still worried about finances despite grocery price rises starting to ease.

Around 60% of consumers surveyed said they expected to be “severely” or “moderately” impacted by the rising cost of living.

Now, a quarter of the total spend on consumer goods in supermarkets is on products that have been cut in price or discounted.

Major supermarkets have been lowering prices on essentials as food inflation continues to slow.