Jessica, who also played Brad Pitt's wife in Tree of Life, talked to E! about her 15 pound weight gain for the role in The Help:
Jessica Chastain: Yogi and Vegan
"I had to be soft and curvy, so I ate a lot of soy. Soy helps you become curvy because it has estrogen in it. So what I would do—and this is really gross—is buy cartons of soy ice scream, microwave it and drink it. It was disgusting, [but] wait till you see my boobs in the movie.... It was like a form of torture because you put on all this weight and then you're in the South where it's really hot and muggy and you're putting on girdles to suck you in."
Jessica says she had no problem taking the weight off thanks to yoga and her vegan diet:
"I do a lot of yoga. I'm also vegan, so that helps. I lose weight really quick."
(Elle reports that Jessica's mom runs a vegan restaurant, too!)
Namaste to that!