• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Generation Iron

Generation Iron Fitness & Strength Sports Network

  • Movies
  • Original Content
  • Reviews
    • Supplements
      • Pre-Workout
      • Fat Burners
      • Testosterone Boosters
      • Creatine
      • Protein
      • BCAAs
      • Multivitamins
      • Omega-3
      • Joint Supplements
      • Super Greens
      • Meal Replacement
    • Recovery
      • Best Cold Plunges
      • Best Saunas
      • Best Foam Rollers
      • Best Massage Guns
    • Programs
      • Best Online Workout Programs
      • Best Workout Streaming Services
      • Best Home Workout Programs
  • Equipment
    • Cardio
      • Treadmills
      • Best Exercise Bikes
      • Best Stair Climbers
    • Fitness Accessories
      • Best Apparel
      • Best Gym Bags
      • Weightlifting Shoes
    • Strength
      • Best Dumbbells
      • Best Barbells
      • Best Kettlebells
      • Best Squat Racks
      • Best Weightlifting Belts
      • Best Home Gym Equipment
      • Complete Home Gyms
    • Training
      • Best Knee Sleeves
      • Best Wrist Wraps
      • Best Weightlifting Wraps
      • Best Weightlifting Gloves
  • More
    • About Us
      • Our Team
      • Our Experts
    • Advertise
    • Franchise With Us
    • Exercise Guides
    • Athlete Profiles
    • Podcasts
    • Power 30
    • Bodybuilding Awards
    • Supplement Awards
  • Shop
News

Zac Efron & Jeremy Allen White Look Jacked In “The Iron Claw” First Trailer

by Greg Patuto Published on Oct 11, 2023

The Iron Claw
This post may contain affiliate links (disclosure policy).

Zac Efron and Jeremy Allen White put on significant muscle for this role and it shows.

It takes great time and effort of actors to prepare for certain roles that they will play. Zac Efron and Jeremy Allen White can tell you that from preparing to play two wrestling brothers in The Iron Claw. Both put on significant muscle mass and look jacked as the movie released its first trailer on Wednesday.

Efron became known as a heartthrob at a young age in High School Musical and continued to work on his physique for the big screen. He has shown off his shredded build in many movies such as Baywatch where he starred alongside The Rock, and Dirty Grandpa. To prepare for this role, Efron bulked up significantly and showed off his new mass in the trailer.

White burst not the scene as Lip Gallagher in Shameless. He continued to gain momentum as he played chef Carmy Berzaton in FX’s The Bear. Now, White will be alongside Efron as the two take part in a movie about a family inside professional wrestling. To prepare for the part, White told GQ that he timed to put on 40 pounds of muscle.

zac efron

Zac Efron & Jeremy Allen White Put On Muscle

Jeremy Allen White told GQ during their exclusive that Zac Efron sent him a note after nailing down the part. It said for the actor to get into top shape and by the looks of it, both have done just that.

“Get training, eat, keep doing what you’re doing, stay hard.”

 

View this post on Instagram

 

A post shared by Zac Efron (@zacefron)

Zac Efron is preparing to play the role of World Heavyweight Champion Kevin Von Erich. For this part, he had to put on serious muscle mass and this is not the first time that he had to undergo a significant transformation. When preparing for Baywatch, Efron cut down in a major way but did not describe the process as a positive one, saying that cutting down the water was too much.

“That Baywatch look, I don’t know if that’s really attainable. There’s just too little water in the skin. Like, it’s fake. It looks CGI’d and that required Lasix, powerful diuretics to achieve. So, I don’t need to do that. I much prefer to have an extra, you know, 2 to 3 percent body fat,” Efron told Men’s Health.

Over the summer, Jeremy Allen White spoke with Esquire about what it took to achieve his physique for this role and highlighted the diet plan.

“Eating all the time. Like, never stopping. In the morning, I would have waffles, almond butter. In the middle of they, I was eating turkey patties and avocado all the time.”

 

View this post on Instagram

 

A post shared by Jeremy Allen White (@jeremyallenwhitefinally)

White continued to discuss how Efron played a role in his transformation.

“Zac’s a maniac. He’s so focused and knowledgable on training, diet, all that. In terms of a physical transformation, I think he kind of blew us all out of the water. He looks really amazing in this.”

The trailer for The Iron Claw was released on Wednesday and shows the insane physique transformation of all characters involved. It took some serious work and dedication for both Efron and White to build physiques that will impress on the big screen.

Will you being seeing these two shredded stars? Let us know what you think in the comments below. Also, be sure to follow Generation Iron on Facebook, Twitter, and Instagram. 

About Greg Patuto

Greg has covered the four major sports for six years and has been featured on sites such as Sports Illustrated, Fox Sports, SB Nation, NJ.com, and FanSided. Now, he is transitioning into the world of bodybuilding and strength sports.

View All Articles

Primary Sidebar

Get the Latest

Stay informed with the latest news, product reviews, & expert advice.

Popular Reviews

  • best protein powders

    The Best Protein Powder Supplements of 2025 (Tried and Tested)

  • Best Creatine Supplements For Bulking & Muscle Growth of 2025 (Personally Tested)

  • top x pre workout

    The 14 Best Pre-Workout Supplements of 2025 (MD Reviewed)

  • Performance Lab SPORT BCAA

    The Best BCAA For Bodybuilding Health & Performance Goals

Trending Articles

  • female fitness models

    18 Best Butts On The Internet (Updated 2024)

  • ronnie coleman the king workout

    Ronnie “The King” Coleman’s Complete Bodybuilding Workout

  • Chris bumstead's 2024 workout and diet plan

    Chris Bumstead’s 2025 Complete Bodybuilding Workout & Diet Plan

  • The Ultimate Mike Mentzer Workout and Diet

Popular Now

  • best protein powders

    The Best Protein Powder Supplements of 2025 (Tried and Tested)

  • Best Creatine Supplements For Bulking & Muscle Growth of 2025 (Personally Tested)

  • top x pre workout

    The 14 Best Pre-Workout Supplements of 2025 (MD Reviewed)

  • female fitness models

    18 Best Butts On The Internet (Updated 2024)

  • best citrulline supplements

    The Best Citrulline Malate Supplements for Performance and Pump

  • ronnie coleman the king workout

    Ronnie “The King” Coleman’s Complete Bodybuilding Workout

Generation Iron

Generation Iron is the first and only digital network delivering health, fitness, bodybuilding, and strength sports content. We deliver premium content with the biggest names in fitness and provide expert coverage, reviews on top brands, workout tips and trends in the worlds of fitness, health and strength sports.

Strongman Corporation
Vladar

Sections

  • Trending News
  • Original Movies
  • Original Content
  • Supplement Reviews
  • Equipment Reviews
  • Exercise Guides
  • Nutrition Guides
  • Athlete Profiles

More

  • About Us
  • Our Team
  • Our Experts
  • Advertise
  • Franchise With Us
  • Podcasts
  • Power 30
  • Shop

CONTACT

Generation Iron Brands LLC
134 West 29th Street Suite 902
New York, NY 10001
Email: [email protected]

Follow

  • Facebook
  • Instagram
  • X / Twitter
  • YouTube

© 2025 · Generation Iron · Disclaimers · Privacy Policy · Accessibility