Produced by genetic modification of the plant or animal. EU legislation requires that all foods containing genetically modified protein or DNA, including those sold in catering outlets, must be so labelled, unless there is less than 0.9% GM material in the food (this limit is subject to negotiation at the time of publication). Products made from GM crops, but highly purified, so that no GM protein or DNA is present (substantial equivalence), were exempt from labelling, but new legislation will require that they be labelled. Foods manufactured using products of GM organisms (e.g. cheese made using GM chymosin) and meat, milk and eggs from animals fed on GM crops need not be labelled as containing GM material.