A pint of beer, or a pint of water?
Supermarkets are often criticised for selling alcohol so cheaply that other shops simply can't compete - and now it appears beer is actually cheaper than water at some of the multiples.
One chain is selling beer for 54p a pint, compared with bottled water at the equivalent of 57p a pint.
Campaigners - including the drinks industry and MPs - have branded the pricing structure irresponsible.
MP John Grogan, of the All Party Parliamentary Beer Group, told This Is Money:
"Supermarkets are abusing their power at some considerable social and economic cost."
