Lay's WOW Chips were fat freepotato chips produced by Frito-Lay containing olestra. They were first introduced in 1998, and were marketed using the Lay's, Ruffles, Doritos, and Tostitos brands. Although initially popular, charting sales of $400 million in their first year, subsequently dropped to $200 million by 2000. As olestra caused anal leakage in some customers, warnings were required to be included on the packaging, with the WOW bag bearing a warning that read, "This Product Contains Olestra. Olestra may cause abdominal cramping and loose stools. Olestra inhibits the absorption of some vitamins and other nutrients. Vitamins A, D, E, and K have been added." In 2003, the FDA no longer required the warning as modifications had all but eliminated the risks. Around the same time, the WOW brand was renamed to "Light". The product then continued under that brand name.