What is the new feed formulation, indeed. And did any of it come from China? I remember the poison pet food years ago.
Yes a “filler” (Melamine which is a type of plastic) that came from china was an ingredient in dog and cat pet food that played a large part in shortening the life of 2 of my cats.
Many people lost pets because of that.
We joined a class action lawsuit that recovered around 80% of the thousands we spent on vet bills, but ultimately we lost them both.