Tesco and M&S likely to have soya linked to deforestation in supply chains

Exclusive: UK supermarkets admit there may be soya-led deforestation in their supply chains due to problems with traceability

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Tesco, M&S and several other UK supermarkets admit that they cannot guarantee that soya from deforested areas is not in their supply chain despite commitments to phase out its use, the Guardian has found.

An investigation has revealed that Tesco, Asda, Morrisons and M&S all buy products from UK farmers using animal feed that includes soya from Argentina. About 14% of Argentina's planted soya is in the north of the country, where deforestation has laid waste to huge areas of the Gran Chaco forest.