Some supermarkets are limiting the number of boxes of eggs customers can buy because of supply problems caused by rising costs and bird flu.
Shoppers are being restricted to two boxes of eggs in Asda, and three in Lidl, to ensure availability.
Other supermarkets have not brought in limits but Waitrose said it is "continuing to monitor customer demand".
There's also evidence chains are experiencing limited stocks in some stores, although different factors may be affecting supplies.
Asda has blamed a series of issues "some long-standing, some more recent" for the problems.
On Tuesday, farmers warned Britain could run out of eggs by Christmas as a result of rising costs and the ongoing outbreak of avian flu.
The cost of animal feed and heating has soared, and some farmers have left the industry or paused production.
The price of eggs has risen by 42.1% in the past 12 months, helping drive overall inflation to its highest level in four decades.
But the British Free Range Egg Producers Association (BFREPA) also claimed higher prices in stores are not being passed on to farmers.
And the National Farmers Union said it has asked the government "to investigate market availability issues and fairness in the supply chain in the egg sector".
Meanwhile the British Retail Consortium insists that "retailers are... working hard to minimise impact on customers", adding that supermarkets "know they need to pay a sustainable price to egg farmers but are constrained by... a cost-of-living crisis."
Overnight Closures For A22 Forest Row Road Improvements
Brighton Defence Manufacturer's Controversial Planning Application Likely To Be Heard
Over £2.4m Approved For Worthing School Support Centre
Section Of M25 To Close Again Tonight - As Drivers Warned Not To Get Complacent
Plans For 800 New Horsham Homes Refused
Over 200 Co-Living Flats Approved For Brighton
Teenager In Custody On Crawley Attempted Murder Charge
Appeal Following Assault In Hastings
Road Closed As Armed Police Attend Incident In Worthing
Lewes District Council Placed In Planning Special Measures