Asda was the cheapest online supermarket in the UK last month according to research, with a trolley of essential items costing more than £7 less than its nearest rival, Tesco.
Research by price-tracking website Alertr looked at the cost of 42 items in supermarket chains' online stores in August. The items were chosen as they feature in the Government-based Consumer Price Index ‘shopping basket’ of products it price monitors to calculate inflation. It includes items like eggs, milk, bread, pasta, rice and cereal.
Alertr did not include Aldi or Lidl "due to the inability for customers to shop full ranges online and not having the same like-for-like branded products that other supermarkets stock".