LOS ANGELES: Hollywood star Angelina Jolie is causing concern on the sets of her new film Salt with a new diet called liquid detox.

The Tomb Raider actress aims to shed 21 pounds in just 21 days for her role in the film as a CIA officer unmasked as a Russian spy and she is raising eyebrows as everyone thinks she has a fantastic figure to lose, reports thesun.co.uk.

The diet — living on a mixture of lemon juice, cayenne pepper and maple syrup — is also leaving her weak. “She does all her own stunts but we worry she could injure herself due to the weight loss,” said a source from the film’s unit.