British actor Nicholas Galitzine pushed his body to extreme limits to embody He-Man for the upcoming Masters of the Universe film, consuming up to 5,000 calories daily while training for three hours straight.
The transformation required for the iconic muscular character involved two brutal phases that tested both physical endurance and mental resilience.
Set for release on June 5, 2026, from Amazon MGM Studios, the film has already generated massive buzz with its trailer garnering 36 million views in just 11 days.
Galitzine’s journey from romantic comedy actor to superhero physique offers fascinating insight into Hollywood’s most demanding physical transformations.
Jump to:
- The Two-Phase Transformation Strategy
- Extreme Training Under Extreme Conditions
- The Science Behind 5,000 Daily Calories
- Training With Hollywood’s Elite Transformation Specialist
- The Mental Challenge Behind Physical Transformation
- Masters of the Universe: Bringing He-Man to Life
- Should Regular People Follow Extreme Transformation Protocols?
- Practical Takeaways for Fitness Enthusiasts
The Two-Phase Transformation Strategy
Celebrity trainer David Kingsbury, who previously shaped Hugh Jackman, Chris Hemsworth, and Ryan Reynolds for superhero roles, designed Galitzine’s transformation program with distinct phases.
The initial bulking phase focused on massive caloric intake paired with intensive weight training. Galitzine consumed up to 5,000 calories daily while spending three hours in the gym building muscle mass.
This approach prioritizes rapid muscle growth by creating a significant caloric surplus, providing the body with abundant energy and protein for tissue repair and development.
The second cutting phase took an entirely different approach. Galitzine incorporated 18-hour fasts while maintaining the same three-hour training sessions, then immediately transitioning to stunt rehearsals.
Extreme Training Under Extreme Conditions
Galitzine has been remarkably candid about the physical toll of his preparation, particularly during the cutting phase.
Fasted for 18 hours and doing a three-hour weight session while fasted and then going and doing stunts right after.
This training protocol represents extreme demands on the body. Extended fasting before heavy resistance training depletes glycogen stores, forcing the body to rely on alternative energy sources.
Most fitness professionals recommend consuming adequate nutrition before intense training sessions to maintain performance and prevent muscle breakdown.
Beyond weightlifting, Galitzine dedicated an additional 1.5 hours daily to stunt rehearsals. The combination created days exceeding four and a half hours of intensive physical activity.
The Science Behind 5,000 Daily Calories
Five thousand calories represents more than double the average daily intake for adult males, which typically ranges between 2,000 and 2,500 calories.
During intense muscle-building phases, extremely high caloric intake serves specific purposes:
- Muscle protein synthesis: Adequate protein and energy availability promote tissue growth and repair
- Training fuel: Extended gym sessions demand substantial glycogen stores
- Recovery support: Surplus calories facilitate faster recuperation between sessions
- Metabolic adaptation: High activity levels increase total daily energy expenditure significantly
However, such extreme caloric intake carries potential risks. Rapid weight gain can include unwanted fat accumulation, digestive stress, and metabolic challenges.
The approach works for short-term transformations with professional supervision but isn’t sustainable or advisable for general fitness enthusiasts.
Training With Hollywood’s Elite Transformation Specialist
David Kingsbury has become Hollywood’s go-to trainer for superhero transformations, with an impressive client roster including some of cinema’s most iconic muscular roles.
His methodology combines progressive overload resistance training with strategic nutrition timing. Kingsbury tailors programs to each actor’s starting physique, role requirements, and filming schedule.
For Galitzine’s He-Man transformation, the three-hour training sessions likely incorporated:
- Compound movements targeting multiple muscle groups
- High-volume training to maximize hypertrophy
- Isolated exercises for specific muscle development
- Functional training to support stunt work demands
Professional supervision becomes critical when implementing extreme protocols. Trainers monitor form, prevent overtraining, and adjust programming based on recovery markers.
The Mental Challenge Behind Physical Transformation
Physical transformation for film roles extends far beyond muscle and diet—it demands significant psychological resilience.
Galitzine’s experience training while fasted for 18 hours, then immediately performing stunts, represents extraordinary mental fortitude. Hunger, fatigue, and physical discomfort become constant companions during such regimens.
Actors face unique pressures that general fitness enthusiasts don’t encounter. Tight filming deadlines, public scrutiny, and career stakes create additional stress beyond the physical demands.
The entertainment industry’s emphasis on dramatic physical transformations has intensified over the past two decades, particularly for superhero and action roles.
Masters of the Universe: Bringing He-Man to Life
The Masters of the Universe film represents a major adaptation of the beloved 1982 toy line and 1983 animated series that defined childhood for millions.
He-Man, the alter ego of Prince Adam, embodies ultimate physical strength and heroism. The character’s iconic muscular physique set the standard for action figures and animated heroes for generations.
Galitzine leads an ensemble cast featuring Camila Mendes as Teela, Idris Elba as Man-At-Arms, Jared Leto as Skeletor, and Alison Brie. The film currently tracks as one of summer 2026’s most anticipated releases.
Known primarily for romantic comedies and dramatic roles, Galitzine’s casting represented a departure requiring complete physical reinvention.
Should Regular People Follow Extreme Transformation Protocols?
Galitzine’s transformation inspires many fitness enthusiasts, but copying celebrity training protocols carries significant risks.
Critical differences between actor transformations and general fitness include:
- Professional supervision: Elite trainers monitor every session, meal, and recovery metric
- Single focus: Actors dedicate entire days to training without competing work responsibilities
- Temporary duration: Extreme protocols last weeks or months, not indefinitely
- Financial resources: Access to personal chefs, recovery specialists, and premium supplements
- Career necessity: Job performance directly depends on physical transformation success
Extended fasting before heavy resistance training particularly concerns fitness professionals. This approach risks muscle catabolism, decreased performance, hormonal disruption, and injury from compromised focus.
More sustainable muscle-building approaches emphasize moderate caloric surplus (300-500 calories above maintenance), consistent progressive overload, adequate protein intake (0.8-1 gram per pound bodyweight), and sufficient recovery between sessions.
Practical Takeaways for Fitness Enthusiasts
While extreme celebrity protocols aren’t advisable for most people, Galitzine’s transformation offers valuable lessons:
Consistency matters more than intensity. Regular training sessions produce better long-term results than sporadic extreme efforts.
Professional guidance accelerates progress safely. Working with qualified trainers helps avoid common mistakes and injuries.
Periodization improves results. Cycling between different training phases (building, cutting, maintaining) optimizes body composition changes.
Mental preparation equals physical preparation. Sustainable transformations require psychological readiness and realistic goal-setting.
Galitzine’s dedication demonstrates what’s possible with proper support systems and unwavering commitment. However, everyday fitness journeys should prioritize health, sustainability, and balance over dramatic short-term transformations.
The He-Man transformation showcases Hollywood’s transformation culture at its most extreme—impressive to witness but designed for specific temporary purposes rather than lifestyle models.
