FYI, a Texas lab has found lethal (to cats) doses of acetaminophen (Tylenol) in cat food. Apparently Hills Science Diet Sensitive Stomach is affected among others, but I don't know specific others. At the levels of acetaminophen measured, a cat eating a 100g can of contaminated cat food would have a 50/50 chance of dying w/in 4 days. Acetaminophen is apparently *quite* toxic to cats, essentially stopping their blood's hemoglobin from being able to carry oxygen.
http://www.dolittler.com/index.cfm/2007/6/7/pet.vet.dog.cat.pet%20food%20recall.acetominophen.6.7.07http://www.pittsburghlive.com/x/pittsburghtrib/news/mostread/s_510984.htmlhttp://www.itchmo.com/read/itchmo-reader-reports-acetaminophen-in-pet-food_20070605 Again, I don't have a list of the actual products, and there hasn't been any recall.