Following Guardian investigation, analysis finds 40% was brought in without sourcing checks from Brazil, Argentina and Paraguay
More than 1m tonnes of soya used by UK livestock farmers to produce chicken and other food last year could be linked to deforestation, according to a new analysis.
Large areas of forest in Argentina, Brazil and Paraguay are being cleared to produce soya, which is then exported to the UK to be used by farmers, mainly to feed chickens and dairy cows.