Wikipedia
Metabolife International, Inc., was a multi-level marketing company based in San Diego, California which manufactured dietary supplements. Metabolife's best-selling product, an ephedra-based supplement called Metabolife 356, once generated hundreds of millions of dollars in annual sales. However, Metabolife 356 and other ephedra-containing supplements were linked to thousands of serious adverse events, including deaths, which caused the U.S. Food and Drug Administration (FDA) to ban the sale of ephedra-containing dietary supplements in 2004.
Subsequently, Metabolife's founder Michael Ellis was convicted of lying to the FDA and concealing evidence of ephedra's dangers, and the company and its owner were both convicted of income tax evasion. A congressional investigation found that Metabolife had received thousands of reports of serious adverse events, many occurring in young and otherwise healthy people, and that Metabolife concealed the reports and acted with "indifference to the health of consumers."