In a move to avoid a lawsuit, Frito Lay an American company said it will change the labeling on its ‘Light’ range of potato chips (crisps) in order to make it clearer that they contain the controversial fat substitute olestra.

This is part of an agreement with the consumer advocacy group Center for Science in the Public Interest (CSPI), which in January this year threatened to sue the snack firm.

Consumers had complained of suffering severe gas and cramps after eating Frito Lay's Ruffles Light potato chips.

The company, uses Procter & Gamble’s olestra brand Olean and says it will move an existing Olean logo to the top of its chip packets, as well as displaying “made with olestra.” on the packets