The quark milk protein is the most expensive dairy product you can buy, but it has been a controversial product for a long time.

The controversy started when a Chinese company called Qantas tried to market its milk as “milk for dogs.”

The problem was that it is actually dairy for cats.

In 2012, the company was fined $2 million for making a false claim about the animal-free product, according to a report by the New York Times.

Qantans milk, which is manufactured by the Quark Foods Group, is made from a blend of whey, casein and casein hydrolysate, a type of protein made from casein that is derived from dairy animals.

While many people have been willing to overlook quark’s animal-based origins, the controversy was so heated that Qantanas CEO Mark Smith resigned.

“If you’re not on board, it doesn’t matter what you’re doing,” Smith said in a 2015 statement to the New Yorker.

The company had no official statement on the controversy and said in an interview with the Los Angeles Times that it didn’t comment on individual cases.

But the company did admit that it “wouldn’t use a quark for any purpose that we don’t believe is justified.”