I,ve seen a few Jewish people in Hendon, London with dogs. Reply; Pinny says on December 22, 2011 . Re Emily: No, pets owned by Jews do NOT have to eat kosher, so they can eat pork, etc. HOWEVER they CANNOT be fed pet food that is made from milk & meat together and they cannot be fed chametz (leaven) that was owned by a Jew over Passover.