Oh, dog, that's what I was feeding my rescue mini schnauzer and I've been transitioning her mostly to a prescription diet ...
Thanks for the message--I'd better go check the details
Edited to add: Yes, that's what she had been eating! We only have two or three cups of this left now, so replacing the "leftovers" will not be a big expense. But I think I am going to check my vet records before I go for the refund--we did blood work and she had high triglycerides, that's why we switched--but I'm a little forgetful of why we were doing the workup in the first place.
But I had been noticing how much happier and perkier she was--I was attributing it to the great weather. Hmmm