WASHINGTON -- A massive pet food recall has made millions of pet owners nervous.

Major retailers across North America have been swamped with calls from worried customers after millions of containers of cat and dog food were recalled.

Menu Foods said it is recalling dog food sold under 48 brands and cat food sold under 40 brands, including Iams, Nutro and Eukanuba.

The company said an unknown number of animals have suffered kidney failure and about 10 died after eating the affected pet food.

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Recall: Dog Products | Cat Products
(links may not work due to heavy traffic) Backup Links:Dog Products | Cat Products

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The Food and Drug Administration warned pet owners of the massive recall. Menu Foods Inc. is recalling 60 million containers of wet pet food.

Pet owners have expressed their concern about the recall and many have called the veterinarians or taken their pets in for a checkup.

"I want him to have the very best of food and pet care," said dog owner Seleta Sell. "So if there is something wrong with his food then I want to know about it."

"Pets are like your family member and the last thing you want to do is feed them something that makes them sick or causes death," said dog owner Monica Hunter.

The Colorado Humane Society is also feeling the effects. 98% of it's wet dog food has been discarded because of the recall. "For us it's a crisis, we really need wet dog food," said Susan Fredinburg from the human society.

The Canadian-based manufacturer is recalling all its "cuts and gravy" style dog and cat food produced between Dec. 3 and March 6. The company distributes the products to numerous retailers in the form of cans and pouches and under different brand names.

A federal investigation is focusing on a protien filler called wheat gluten as a possible sourse of the contamination.

The products are sold at stores including Wal-Mart, PetSmart, Pet Valu and Kroger.

Officials warned pet owners to immediately stop feeding the contaminated foods to their pets and said owners should see their pets' veterinarians if they develop signs of kidney failure, including loss of appetite, vomiting or lethargy.

The company said they have conducted tests, but are so far are unable to locate the source of the contamination.

A complete list of the recalled products along with product codes, descriptions and production dates is available from the Menu Foods Web site at menufoods.com. The company Web site was experiencing a high volume of traffic Monday and was not available during some periods. Pet owners can also call 1-866-895-2708 for more information.

To discuss the pet food recall with other pet owners, click here.

If you'd like to make a donation to the Colorado Humane Society, go to 2760 So. Platte River Drive, or call 303-781-9344.