Sienna was forced to pile on the pounds for her role in new film 'Hippie
Hippie Shake', and the 'Fight Club' star has recommended his unique
weight-loss technique as a great way to slim back down.
A source told Britain's Daily Express newspaper: "He can lose 14lbs in a
month on an all-liquid diet by mixing water with curry powder or pepper and
combining it with lots of sex.
"Apparently Sienna was amused by his advice as she has had to put 7lbs in
the past few weeks for her role as a flower child in the film 'Hippie Hippie
Shake'."
Jared, 35, was introduced to Sienna by 'Notting Hill' star Rhys Ifans - who
is rumored to be dating Sienna - while filming 'Mr. Nobody' in London.