“But it’s nice being in shape for a movie, because they basically do it all for you. It’s like, ‘Here’s your trainer. This is what you can eat’.

“I don’t diet. I do exercise! But I don’t diet. You can’t work when you’re hungry, you know?” she told Glamour.

ennifer has made it very clear in the past that she is for eating whatever she wants and won’t restrict herself unless a role requires her to.

She said: “I don’t like when people say, ‘I only do this or eat this,’ because I eat.

“I’m not very strict with my diet – if I want a piece of pizza, I eat a piece of pizza.

“But I do work out more than normal because I have a certain way that I want to look, and a way that I want to fit into my clothes.”

She added that even though she enjoys her food, she is aware of the extra “pressure” of how to look in Hollywood.

“I get photographed when I’m not asking for it, so there’s added pressure to look and feel your best,” she explained in an interview with Vogue U.S.

“For me, it’s easier to put that extra effort into the gym instead of putting the extra effort into, ‘Oh no, I can’t eat that.'”

She credited her personal trainer, performance coach and nutritional expert for positively helping her change her body.

“[Dalton Wong] changed my body for that movie but gave me the skills to change my life,” she said.

“I could never live on a ‘diet.’ Dalton taught me how to eat, move, and live a delicious but healthy life. I will always thank him for that.”

Her workouts include short, regular bursts of high-intensity interval training, using only body weight.

More recently, for her 2018 movie Red Sparrow, she played an ex-ballerina-turned-spy and worked with professional dance coach Kurt Froman for six days a week, three hours a day for three months.

Her regime included cross training in the form of Pilates, or toning and weight-training.

When it comes to food, she revealed: “I don’t really diet or anything.

“I’m miserable when I’m dieting and I like the way I look. I’m really sick of all these actresses looking like birds.

“I’d rather look a little chubby on camera and look like a person in real life, than look great on screen and look like a scarecrow in real life.”

But for Red Sparrow she had to get really strict with her diet.

“I’ve always wondered what it would take to get me to really diet, to be really hungry, because I’ve never done it for a movie,” she said.

“For Hunger Games, they told me to lose weight, and then I discovered Jack in the Box [a US fast food chain]. Red Sparrow was the first time that I was really hungry and disciplined,” Jennifer told Vanity Fair.

But Wong said she likes to keep healthy snacks on hand while on-set, explaining: “In Jennifer’s trailer, we would always have some full-fat Greek yogurt, some dark chocolate, some hummus and vegetables.”