Although grapes and raisins are treats for people, even a few can cause sudden kidney failure in dogs and, potentially, cats, she says. (vetmed.auburn.edu)
While the reason is not yet clear, the fact that even a small amount of grapes (and raisins) can cause sudden kidney failure in dogs is well known. (animalbehaviorcollege.com)
She died from sudden kidney failure within 2 weeks of having the 1st bag. (askavetquestion.com)