The Food Standards Agency has warned that food packaging could contain hidden quantities of latex, which could trigger allergies.

In a study of 21 food products, the FSA found that one third of packaging tested was contaminated with latex, with the highest levels found in ice cream wrappers.

Professor Barry Kay, an allergy expert at the Royal Brompton Hospital in London, said: “Latex can give contact hypersensitivity. There should be legislation on latex used in food packaging.”