Dakota is said to have put herself on a juice diet to cope with filming.
'This will be a tough movie to film.' a source told E! News. They have locations that are spread out and they will be filming for three months.
Sometimes they are starting at 6:30am and the hours are long. The juices help her feel great and maintain a high nutritional intake. They give you energy and don't get the same crash as sugar or coffee. It is a more sustainable energy level.