A group of overweight Americans have sued several US fast food giants accusing them of knowingly serving meals that cause obesity and disease. The lawsuit - filed in New York State Supreme Court in the Bronx - says that McDonald's, Burger King, Wendy's and Kentucky Fried Chicken misled customers by enticing them with greasy, salty and sugary food. "The fast-food industry has wrecked my life," Caesar Barbar, one of plaintiffs, told the New York Post. Mr Barbar - a 57-year-old maintenance supervisor who weighs almost 125 kilograms (275 pounds) - said he regularly ate fast food until 1996, when a doctor warned his diet could potentially kill him. Mr Barbar said he had already had two heart attacks and has been suffering from diabetes.