The Food Standards Agency is to review how it regulates the marketing and labelling of genetically modified produce, after a government paper on food policy on Monday highlighted the difficulties of sourcing non-GM animal feed. The paper said the UK risked importing feed wrongly labelled as non-GM if prices kept rising.

Farmers are battling to meet supermarket requirements to feed some animals, including chickens, non-GM grains, as prices remain near record highs.