Two law firms are gearing up for possible class action lawsuits against  Canidae  and  Nutro , whose products allegedly caused pet illnesses, according to a story from  Consumer Affairs .

Canidae has never issued a voluntary recall of its foods; it has  responded  to the allegations by Consumer Affairs on its  website .

Menu Foods, which makes some Nutro petfood products, issued a series of recalls in 2007, after reports of dog illnesses where at least 10 deaths occurred. The  Pet Food Products Safety Alliance  says it found high levels of copper and zinc when it tested Nutro petfood in August 2008.

Another  class action lawsuit  against Menu Foods recently settled for US$24 million.