- CompaniesNEW YORK, Dec 29 (Reuters) - Hershey Co (HSY.N) has been sued by a consumer who accused the company of selling dark chocolate that contains harmful levels of lead and cadmium.In a proposed class action filed on Wednesday, Christopher Lazazzaro said he would not have bought or would have paid less for Hershey's Special Dark Mildly Sweet Chocolate, Lily's Extra Dark Chocolate 70% Cocoa and Lily's Extreme Dark Chocolate 85% Cocoa had Hershey disclosed their metals content.Lazazzaro, a resident of Nassau County, New York, sued two weeks after Consumer Reports unveiled the results of scientific testing of 28 dark chocolate bars for lead and cadmium.The magazine said that while all 28 contained the heavy metals, 23 including chocolate from Dove, Godiva, Lindt and Trader Joe's contained potentially harmful levels of lead, cadmium or both for people who eat one ounce of chocolate a day.Lazazzaro said reasonable consumers would be turned off by such levels because they pose a "serious health risk," and that consumers rely on Hershey to be truthful about ingredients in its products."