Jolie was put on an extreme diet to lose 21 pounds in 21 days for her role in Salt, reports FemaleFirst.
In the film, she plays a woman CIA assassin forced to disguise herself as a man. "To play a man convincingly Angelina is adamant she needs to lose her curves," a source revealed. However, the actress is already very slim to begin with.
Angelina is on a strict diet where she has to consume liquids every two hours to clean out her system. This diet, which lasts around 21 days, is very difficult. It seems that Jolie was had to integrate small meals into her regiment, because she grew weak and tired.
It was also reported that her partner, Brad Pitt, was not happy about this regiment, and thinks that it is unnecessary and dangerous.