As the nationwide recall of contaminated dog food widens, the Nestle Purina Pet Care Company has now recalled some of its dog food upon discovery that it is tainted with ingredients that have contributed to the kidney failure and death of dogs.

The contaminated ingredient is wheat gluten from China. This wheat gluten is from the same supplier that delivered wheat gluten to Menu Foods who earlier recalled more than 95 brands of dog food sold as private label dog food and as major brands through large dog food retailers.

Some reports have indicated that it is tainted with a rat poison and additional laboratory tests have revealed the existence of melamine. Melamine is used in the in the manufacture of plastic products such as plastic spoons. Melamine is also used in the manufacture of fertilizer.

With this now widening dog food recall, Purina has recalled Alpo Prime Cuts and Gravy wet food. Earlier, Purina recalled some Mighty Dog pouch products .

An added concern is a dog food recommended by many dog veterinarians, the Hill