A lawsuit has been filed against the Purina Company with allegations that Beneful has possibly caused thousands of dogs to become ill or die. (according to PetfoodRecall.org)
Propylene glycol is the ingredient alleged to cause the illness. Propylene glcol is a preservative that is used in foods for human and pet consumption.
Investigations are pending.
According to PetFoodRecall.org They note 11 recalls by Purina.