Last updated at 15:29

Leah looks into what fish we're being served up...

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Scientists from Salford University claim large amounts of white fish in Britain is labelled incorrectly and being swapped for cheaper types of fish.

They discovered seven per cent of cod and haddock - what you find in your fish and chips - was actually the cheaper pollock, or farmed fish from Vietnam.

Dr Stefano Mariani from Salford University is concerned consumers are being deceived: "Consumers should be able to go to a shop and know they are eating what they paid for."