there's a story of someone & others who had used nutro max dry dog food & the dog died 4 days after eating it. i dont know if this affects the cat product line. you can see this persons story on this article which covers tainted food news (even reports that the FDA has yet to act on):
the website name is consumer affairs.
this is the first place i've seen with news on peoples problems with foods before it's been taken action on by the FDA.