Natalie Portman Went Through a Gross Process to Bulk Up For Thor 4: “All about protein shakes all day”

Natalie Portman's Thor 4 transformation was revealed as a grueling journey fueled by protein shakes around the clock.

Natalie Portman Went Through a Gross Process to Bulk Up For Thor 4: "All about protein shakes all day"


  • Natalie Portman's Thor 4 transformation shocked fans, transitioning from her usual slim physique to a muscular look like Jane Foster.
  • Portman revealed the challenges, including the surprising need to consume protein shakes all day, making the process feel gross.
  • Chris Hemsworth, after his grueling superhero diet, vows to avoid extreme size gain due to its exhausting nature.
Show More
Featured Video

In the film Thor: Love and Thunder, Academy Award-winning actress Natalie Portman performed a stunning version for the Marvel Cinematic Universe. However, the road to reprising her role as Jane Foster was anything but ordinary. The 42-year-old dedication to embodying the powerful character required a transformative physical journey.

Natalie Portman in Annihilation
Natalie Portman in Annihilation

Read more: Hugh Jackman-Deborra-Lee Furness the Most Devastating 2023 Celebrity Divorce: Natalie Portman & Benjamin Millepied Not Even in Top 5

A gritty and grueling process that involved a seemingly unconventional approach: exclusive consumption of protein shakes. 


Natalie Portman Underwent An Intense Transformation For Thor 4

Natalie Portman went through a major transformation for Thor: Love and Thunder. You probably saw the buzz around how she looked in the movie.

Known for her usual slim look, she surprised everyone by rocking a more muscular vibe than Jane Foster. Before hitting the set, Portman spent months just getting her body and joints used to the whole muscle-building thing: something she hadn’t done much of before.

Natalie Portman as Mighty Thor
Natalie Portman as Mighty Thor

Read more: “I get very drawn to these characters”: Acting In $55M Natalie Portman Sci-Fi Made Moon Knight Star Oscar Isaac Realize He’s Attracted To Nihilistic Roles


In a recent chat, the Oscar-winning actress spilled the beans on why bulking up for Jane Foster felt kind of gross, and honestly, it makes sense. In a recent chat with Vanity Fair, Portman went back in time, chatting about her career’s big moments.

The Star Wars veteran talked about the challenges of getting all beefed up and shared what it felt like to step into the shoes of a towering 6’3 character. She said,

“It’s pretty amazing, you know. You kind of feel like, Oh, I guess I’ll just get to play petite women my whole life. And then they’re like, No, you’re gonna play a 6’3” character. Then you watch yourself on screen, I’m like, This is what it looks like to be like a big person. This is what it feels like.”

Seeing herself as this towering figure on screen blew her mind. But let’s be real; it wasn’t all sunshine and rainbows for the Leon star. She spilled the beans on the weirdest part, how much she had to eat. She revealed,


“The most surprising thing was how much you have to eat. Like it was all about like protein shakes all day, which are just so gross after a while. So it was a funny world to get an insight into.”  

So, stepping into superhero shoes? Yeah, it was a wild ride, protein shakes and all. And guess what? Chris Hemsworth, our very own Thor, also went through the wringer, getting all jacked up for Love and Thunder.

It turns out that being a superhero is no walk in the park; it’s hard and exhausting.

Chris Hemsworth Vows To Avoid His Thor Diet Post-Love And Thunder

Chris Hemsworth as Thor in the MCU
Chris Hemsworth as Thor in the MCU

Read more: “Ain’t far from the truth”: Joaquin Phoenix’s Joker Gets Compared To Natalie Portman’s Darkest Movie After Fans Dig Up ‘Inspired’ Scenes


Hemsworth is waving goodbye to the superhero diet after tackling the intense regimen for Thor: Love and Thunder. Did you see him in the movie? Insane.

Behind the scenes, his dedication was next level, eating every two hours, loading up on calories, and grinding through intense training sessions. The 40-year-old, who’s mastered the art of body transformations, dubbed it a journey.

Yet, this time, the process was a real challenge. Amid the pandemic hurdles, his routine boiled down to training, eating, and more training. The goal? Look bigger and stronger than ever. But it came at a cost: exhaustion. As per Business Insider, Hemsworth confessed,


“It was train, eat, train, eat. Nothing else to do. Then I turned up for the film bigger than I’ve ever been. It was just exhausting. I don’t know, maybe I’m getting old, but things just started to hurt more.”

Further, the actor added,

“This was particularly hard. I think because the target weight we aimed for was quite a ways above where I’d been before.”

While the on-screen results were stunning, he’s relieved to ditch the demanding diet. Hemsworth admitted, “It was a really fun exploration, but I don’t know that I wanna get that big again.” The superhero era might be over, but the behind-the-scenes grind? That’s a story worth telling.


Written by Muskan Chaudhary

Articles Published: 694

Muskan Chaudhary, Junior Content Writer at Fandom wire. Having completed her degree in Commerce, she has written over 500 articles spanning FandomWire and Animated Times in the pop culture. She is dedicated to bring the latest and informative content from the entertainment world, thus expanding her knowledge in the field. Apart from her contributions to FandamWire, she has a keen interest in video games, sketching and playing tennis.