4 doctors weighed in:

If a person has penicillin allergy, is it safe to eat roquefort, blue, or gorgonzola cheese? Does the mold in the cheese make penicillin?

4 doctors weighed in
Dr. Steven Machtinger
Internal Medicine - Allergy & Immunology
3 doctors agree

In brief: Great question

Reactions to penicillin in foods eaten by persons allergic to penicillin are rare - perhaps 10 cases in past 25 years worldwide.
Cases involve eating meat from an animal given penicillin before slaughtering. I found no cases attributed to the cheeses listed. They use a different species of the genus penicillium to add flavor. Also many persons who think they are penicillin allergic are not.

In brief: Great question

Reactions to penicillin in foods eaten by persons allergic to penicillin are rare - perhaps 10 cases in past 25 years worldwide.
Cases involve eating meat from an animal given penicillin before slaughtering. I found no cases attributed to the cheeses listed. They use a different species of the genus penicillium to add flavor. Also many persons who think they are penicillin allergic are not.
Dr. Steven Machtinger
Dr. Steven Machtinger
Thank
Dr. Edward Neilsen
Family Medicine
1 doctor agrees

In brief: Should be fine

Penicillin was traditionally isolated from specific molds, but the concentration is very low.
I am unaware of this ever being a problem, even in the case of severe allergy.

In brief: Should be fine

Penicillin was traditionally isolated from specific molds, but the concentration is very low.
I am unaware of this ever being a problem, even in the case of severe allergy.
Dr. Edward Neilsen
Dr. Edward Neilsen
Thank
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