It's not just the wheat. They use euthanized animals for dog food. That means if the animal was sick and being treated with drugs, that is all in the food. It has been going on for years and is finally catching up with these slimeball companies.
Slimeball companies do slimy things with human food too, it's not just petfood companies. The lack of inspections in the meat industry are appalling, not to mention GMO's (genetically modified organisms), cloned food (coming soon), etc.
That is disgusting. All for the almighty dollar? How much more expensive could it it be to manufacture a quality nutritious pet food product in large quantities FGS?