Famous dietician Rujuta Divekar had chalked out three different diet plans for Kareena.
Rujuta told Mid-Day, "For the shoot of Ra.One's Chammak Challo, she had to fit in to this sexy white dress. To attain that perfect figure, we had a Mumbai diet charted out on her return to the city, one for her stay in Las Vegas another for her 24-hour flight from Mumbai to Las Vegas via London and then back again to Mumbai after the shoot ended. She lost five kilos for the Ra.One song but still ended up looking fit and fabulous."
The dietician, who has previously planned diets for Kareena, said that it was very difficult to plan this one. "We had two diets in place one for 10 days and one for the nights. It was very tough to find the right food in Vegas as they were shooting outside."
Incidentally, during the shoot of Ra.One, Kareena had to eat several pan cakes topped with maple syrup. That got Rujuta extremely worried but Kareena managed to stick to the diet perfectly.
During the shoot of the song, Kareena ate makhaanas (lotus seeds) to sustain energy and necessary nutrients.
