"Supermarkets are seeking to reassure shoppers that there is no need to bulk-buy products as new lockdown restrictions come into force.
Asda asked its customers to "continue to shop considerately and not buy more than they normally would."
There was a surge in online grocery shopping after new lockdown restrictions were announced on Monday, but demand has since dropped back.
Stores said they have good availability and have increased delivery slots.
Tesco and Sainsbury's have doubled the number of delivery slots since March."
Shoppers told not to buy more than normal - BBC News
Asda asked its customers to "continue to shop considerately and not buy more than they normally would."
There was a surge in online grocery shopping after new lockdown restrictions were announced on Monday, but demand has since dropped back.
Stores said they have good availability and have increased delivery slots.
Tesco and Sainsbury's have doubled the number of delivery slots since March."
Shoppers told not to buy more than normal - BBC News
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