Pentobarbital is a barbiturate not a poison unless used in high doses, it used to be used to treat insomnia like any barbiturate it is a CNS depressant and in large doses can be fatal. That aside it has no business in pet food in any quantity. I find it interesting that many of the pet and livestock owners are legitimately appalled by the use of euthanized animals in pet food. Yet they cheer the ridiculous deregulation of company’s that allows this sort of thing to happen. The FDA is horribly short staffed they don’t have enough inspectors to adequately inspect facilities that produce food for humans much less animals. Companies who pursue practices like this should be put out of business and the people within these companies who cut corners in this manner charged with felonies. But you can bet your ass it won’t happen in the age of Trumps corporate kleptocracy. As you look at your pets and children and grandchildren remember that regulation and enforcement make sure that they have safe food to eat, are not ejected from cars in wrecks, and paint on their toys dosn’t contain lead.