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How actors get ripped: The science behind celebrity fitness

According to mental performance coach Anwar Wahhab, transformation begins in the mind

Chris Hemsworth as Thor Stock Photographer

Anwar Wahab
Published 04.03.26, 09:32 AM

We have all experienced that moment. You are sitting in the cinema, popcorn in hand, watching the latest superhero film or high-octane action thriller. The music swells, the camera pans up, and there they are — the lead actor, who appears to have been chiselled from granite. Their shoulders are like boulders, their waist almost non-existent, and their veins resemble road maps.

You look down at your popcorn, then at your stomach, and ask, “What on earth are they doing that I am not?”

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As a high-performance mental coach who has studied the psychology of elite performers, I am here to reveal the truth. And I will warn you now: it is not magic, and it is certainly not simple. It is a masterclass in psychology, biology and relentless discipline.

Here is the secret plan, disclosed.

The ‘must’ versus the ‘should’

The key distinction between you and a star preparing for a role is leverage. When you decide to get fit, it is typically a “should”. You should lose 5 kg. You should go to the gym.

For an actor such as Chris Hemsworth preparing for Thor or Hrithik Roshan getting ready for War, it is a “must”. There are millions of pounds at stake. Contracts are signed. Release dates are set in stone. If they appear out of shape on day one of filming, they risk not only the role but also their reputation.

When the pain of not doing the work outweighs the pain of doing it, transformation begins immediately. These actors enter a mental state I call “the tunnel”. They block out everything else. For 12 to 16 weeks, they are not living normally. They are soldiers on a mission. They do not rely on motivation but on obligation.

Ecosystem for excellence

You see the actor, but not the machine behind them. This is the “entourage effect”. When Kumail Nanjiani stunned audiences with his transformation for Marvel’s Eternals, he did not simply buy a gym membership. He had a team.

The architect trainer: This individual programmes every repetition. The actor does not think; they simply execute. Decision fatigue is removed.

The fuel master chef or nutritionist: The food arrives. There is no shopping, cooking or negotiating. If the container says chicken and asparagus, they eat it.

The healer physio: When you train like an athlete, your body breaks down. Massage therapists and physiotherapists work with these performers daily to prevent minor injuries from becoming major ones. They live inside a high-performance bubble. If you had three people whose sole job was to ensure your success, you would look like a superhero too.

Training aesthetics versus athletics

This is where the real strategy appears. Celebrity trainers do not train these actors to be professional athletes; they train them to look like athletes. There is a significant difference.

They use a method known as spot-specific hypertrophy.

For men, the “V taper” is the goal. Broad shoulders and a wide back narrowing to a tight waist.

The Hollywood shoulders: They prioritise the lateral deltoids. Rounded shoulders make the waist appear smaller by contrast.

The upper chest: There is strong emphasis on the upper chest through incline pressing because it is what fills out a V-neck shirt or a superhero costume.

The traps: The muscles connecting neck and shoulders signal power and presence.

Consider Aamir Khan in Dangal. His transformation from a pot-bellied middle-aged man to a lean wrestler remains one of the most striking in Bollywood. When he was losing fat, he did not rely solely on cardio. He lifted heavy to preserve muscle density, concentrating on areas that projected strength rather than thinness.

For women such as Deepika Padukone in Pathaan and Gal Gadot in Wonder Woman, the emphasis shifts to the “X frame” — strong shoulders, a narrow waist, and well-developed glutes and legs. They train to build strength, not merely to lose weight. They lift heavy. Hollywood dismantles the myth that heavy lifting makes women bulky year after year.

The diet — unexciting truth

If you stepped into the kitchen of Henry Cavill during his Superman preparation or John Abraham while getting ready for a role, you would likely be underwhelmed. There is no secret superfood.

The diet is brutally simple and repetitive. It is fuel, not entertainment. They usually follow a structured cycle.

The bulking phase: They eat in surplus. Not pizza and ice cream, but large quantities of rice, potatoes and lean protein. They eat even when they are not hungry. They are deliberately building muscle mass.

The cutting phase: This is where the visual change occurs. Calories are gradually reduced while protein intake remains high. Fat decreases while muscle is preserved.

Another commonly used strategy is carbohydrate timing. Many performers consume most of their carbohydrates around training sessions. The aim is to channel energy towards performance and recovery rather than storage. The remainder of the day is often protein and vegetables. It becomes a sustained psychological battle with hunger.

Camera-ready illusion: The final week

The physique you see on screen — Shah Rukh Khan revealing his abs in Pathaan or Hugh Jackman roaring as Wolverine — is not their everyday condition.

That look is temporary. It is a peak. The typical shirtless-scene protocol often includes...

Water loading: For several days, water intake is extremely high. The body adapts by increasing fluid excretion.

Acute restriction: Approximately 24 hours before filming, water intake is drastically reduced. The body continues to flush fluids, creating a temporary tightening effect under the skin.

Carbohydrate loading: After depletion, simple carbohydrates are reintroduced. Muscles absorb glycogen and appear fuller and harder.

The pump: Minutes before filming, the actor performs resistance exercises such as press-ups or band pulls. Increased blood flow temporarily enlarges the muscles.

They may feel dehydrated, light-headed and fatigued, but for a few seconds on camera, they appear superhuman.

Dark side performance enhancers

We should approach this realistically. While many transformations are achievable through discipline and structure, some rapid changes raise questions.

When a 40-year-old actor gains 10 kg of lean mass while simultaneously losing fat in a short period, biological limits are being tested. In a high-stakes industry with enormous financial investments, medical interventions such as testosterone replacement therapy are sometimes discussed. These can accelerate recovery and enable more frequent training. It is a complex and controversial subject, but it forms part of the broader conversation.

Mental mastery: The alter ego

How do they tolerate months of repetitive meals? How do they wake at 4 am to train?

They often employ an alter ego. When Ranveer Singh prepared for Padmaavat, he did not train as himself. He embodied the character. He immersed himself psychologically.

Elite performers separate emotion from action. They do not ask, “Do I feel like training?” They ask, “What would the character require?”

They visualise the outcome so vividly that present discomfort feels like a necessary investment. They learn to tolerate repetition. They accept that comfort rarely produces growth.

What you can learn from this

You may not have a private chef, a full-time trainer or a multi-million-pound contract. But you can adopt elements of the mindset.

Set a deadline: Without a date, urgency fades. Book a photoshoot. Enter a race. Create your own release date.

Design your environment: You may not hire a team, but you can remove processed food from your kitchen. You can train with a partner who holds you accountable. You can prepare meals in advance to reduce decision fatigue.

Stop depending on motivation: Motivation is transient. Discipline is behavioural. Act because you committed to it, not because you feel inspired.

The celebrity transformation is not mystical. It is structured. It is extreme effort plus precise nutrition plus unwavering consistency multiplied by time.

The secret is not in a pill. The secret lies in cognition and commitment. The body follows where the mind directs.

The next time you see an extraordinary physique on the big screen, admire the muscle — but respect the strategy that built it.


Anwar Wahhab is a mental performance mastery coach and a bioprint practitioner. You can reach him at anwarwahhab.awefitness
@gmail.com

Celebrity Fitness Mental Health Fitness Coach
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