(JTA) — Oxford University Press has banned references to pigs and pork in its publications in order to avoid offending Jews and Muslims.

“Many of the educational materials we publish in the UK are sold in more than 150 countries, and as such they need to consider a range of cultural differences and sensitivities,” a spokesman for Oxford, the largest university press in the world, told the British media.

Eating pork is forbidden in Islam and Judaism.

The policy came to light  in the wake of the Islamist extremist attacks on Paris during Radio 4’s “Today” program, which read a letter on the air sent by the Oxford University Press to an author asking her not to mention pigs or pork products in her book.

Representatives of the Jewish and Muslim communities told the British media that the ban was unnecessary.