An unknown number of cats and dogs suffered kidney failure and about 10 died after eating the affected pet food, Menu Foods said in announcing the North American recall. Product testing has not revealed a link explaining the reported cases of illness and death, the company said.

"At this juncture, we're not 100 percent sure what's happened," said Paul Henderson, the company's president and chief executive officer. However, the recalled products were made using wheat gluten purchased from a new supplier, since dropped for another source, spokeswoman Sarah Tuite said. Wheat gluten is a source of protein.

Below are lists of specific brands recalled by Menu Foods, in addition to Proctor & Gamble's recall of certain Iams and Eukanuba products. Menu Brands lists the brands on its Web site, www.menufoods.com, and advises consumers to call 1-866-895-2708 for more information.