The lawsuit is ?filed on behalf of 15 million vegetarians and 1 million Hindus in the Unites States.?The complaint contends that Pizza Hut's vegetarian products contain beef products and that Pizza Hut has"attempted to conceal this continual use of beef products from plaintiffs and the general public throughduplicitous advertising and other means."

"Plaintiffs, who are all vegetarians for ethical, philosophical, moral and religious reasons, wereinduced to purchase and consume vegetarian pizza items sold as vegetarian products based upon false andmisleading representation," it adds.

The suit claims that Pizza Hut does not identify the amount of beef product used in its ingredient listbecause it is considered a "secret ingredient" that is the source of the flavor of Pizza Hut pizza.?

When contacted Patty Sullivan, spokeswoman for Dallas-based Pizza Hut, said : "We do not have beefproduct in our pizzas."? With regards to the enzymes used in the pizzas she claimed that they areobtained from microbial sources, which are non-animal. She wouldn't comment beyond this because of the ongoinglitigation.

Pizza Hut is owned by a multinational corporation, Tricon Global Restaurants, and has 8,084 outlets in theUnited States. There are approximately 12,100 Pizza Hut Locations worldwide.

The Pizza Hut?lawsuit is seeking unspecified damages claiming that the company unjustly enricheditself while causing? severe emotional ?distress including symptoms such as headaches, stomachaches,nausea, vertigo, general malaise, and feeling of guilt, shame and sin, to the plaintiffs.

The 16 million strong American vegetarian community?is increasingly asserting itself and is forcingthe food industry to accommodate its needs. After a six month long campaign by the People for the EthicalTreatment of Animals?(PETA)?last year, Burger King agreed to hold its suppliers accountable forupgraded standards of animal welfare. The company also became the first fast-food restaurant in America to adda veggie burger to all U.S. locations.