Chinese ingredients?
I was thinking a Muzzie ingredient, to kill off dogs. The Chinese would add MSG to pre-tenderize the meat.
“It comes from euthanasia of animals using that euthanasia drug,” said Dr. Nicholas Dodman, chief scientific officer for The Center for Canine Behavior Studies and former director of the Animal Behavior Program at Tufts University. “So, these animals could be dogs, they could be cats, they could be horses - but how is it getting into the pet food? If they say it doesn’t come from dogs, cats and horses where does it come from? It doesn’t come from outer space.”