Sydney Sweeney is pulling back the curtain on how she was able to quickly lose the weight she gained for her role in the new film, Christy.
“I had to be really strict with myself,” the actress, 28, said of her dieting plan after wrapping Christy in an interview with People published on Monday, December 10. “When I was training, it was really hard to put on all the weight.”
Sweeney previously shared that she had gained 30 pounds while training to portray boxer Christy Martin.
“I was eating so much food. Like, everything you could possibly imagine,” she continued. “And then I was downing protein shake after protein shake and taking a lot of creatine, which just makes you bloat.”
After wrapping up Christy, Sweeney had seven weeks before production began on her next movie, The Housemaid, premiering on December 19. Sweeney also returned to film her hit TV series Euphoria, which began production for season 3 earlier this year.
To get back to her natural shape, Sweeney “stopped” all of her previous training methods.
“When you stop working out and taking all your protein shakes, you lose muscle super fast,” she explained. “It’s the first thing to go before fat. So, that I dropped within two weeks.”
On top of quitting her training routine, Sweeney also followed a “super clean” diet and performed “a lot of cardio.” The Anyone But You star credited her quick weight loss to her metabolism, which she explained “works really well.
“I don’t want to say this is super easy,” she said about her rapid weight loss. “But I’ve been a very active person my entire life. Like, I was a super active kid, and I’ve always kind of just stayed active and always had a good metabolism. I can gain weight, but I can lose it too.”
While Sweeney admitted she can morph her body for a role, “this might be the one and only” time she agrees to put herself through such a drastic physical change..
Earlier this year, Sweeney opened up about her transformation process for Christy a biopic that follows the life of Martin, who overcame an abusive ex-husband while becoming America’s best-known female boxer. The Euphoria star revealed in June that her body was “completely different” after training for “three and a half months.”
“I didn’t fit in any of my clothes,” she told W magazine at the time. “I’m usually a size 23 in jeans, and I was wearing a size 27. My boobs got bigger. And my butt got huge. It was crazy!”
Sweeney continued, “But it was amazing: I was so strong, like crazy strong.”
During her training period, Sweeney shared that she was inspired by Martin’s strength and tenacity.
“Christy’s story is beyond important to tell. She is inspiring and an ultimate underdog. She completely changed the way that women in sports and boxing have gone on in time past her,” Sweeney said in an October interview with SiriusXM. “I knew that every single detail that was going to go into this, every choice that I made, was going to be an important one. Having Christy by my side during it was the biggest gift I could have asked for.”
Christy is in theaters now.
