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If you are allergic to penicillin, can you eat Stilton? © Getty Images

If you are allergic to penicillin, can you eat Stilton?

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The blue veins running through Stilton cheese comes from the same group of molds that produced the first antibiotic.

Asked by: Emily Thompson, Stockport

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The antibiotic penicillin is made from the fungus Penicillium chrysogenum. Stilton and most other blue cheeses do use Penicillium mould to create the blue veins, but they use a different strain (P. roqueforti) and the whole mould, rather than the penicillin extract.

It is possible to be allergic to the drug and still be able to eat the cheese with impunity, although there are also people who are allergic to both. It’s also worth noting that only 20 per cent of people who think they are allergic to penicillin, actually are.

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Authors

luis villazon
Luis VillazonQ&A expert

Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.

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