Beginning in March 2007, there were massive recalls of many brands of cat and dog foods. The recalls came in response to reports of kidney failure in pets consuming mostly wet pet foods made with wheat gluten from a single Chinese company, beginning in February 2007. After more than three weeks of complaints from consumers, the recall began voluntarily with the Canadian company Menu Foods on March 16, 2007, when a company test showed sickness and death in some of the test animals. Soon after, there were numerous media reports of animal deaths as a result of kidney failure, and several other companies who received the contaminated wheat gluten also voluntarily recalled dozens of pet food brands. Menu Foods recalled almost over 50 brands of dog food, and over 40 brands of cat food. Nestlé Purina PetCare withdrew all sizes and varieties of Alpo "Prime Cuts in Gravy". Some companies were not affected and utilized the situation to generate sales for alternative pet foods.