In 2012, the Food and Drug Administration investigated Slippery Rock, Pa.,-based Castle Cheese Inc. for selling a product labeled “100 percent grated Parmesan cheese” that was found to … ...

A package of Kraft Parmesan cheese is seen in 2014. ... “Doing so would inform them that the product contained non-cheese ingredients,” the judge wrote.

The label of Kraft Parmesan Cheese, for example, simply says the cheese contains "enzymes." Kraft didn't respond to Business Insider's attempt to clarify if the cheese was vegetarian or not.