The 23-year-old actress - who plays the female lead in the adaptation of Suzanne Collin's Hunger Game novels, said she does not care about her diet, reported Femalefirst.
"During 'Hunger Games', when I was eating ungodly amounts, I used to tell myself, 'Stop eating, people are going to see this. This movie is going to be around forever.' But nope! I was like, I still want candy and I still want a hot dog!," she said.
The Oscar-winning star, who famously bares all in 'X Men: Days of Future Past', said she could not find the motivation to workout.