How ‘Superman’ Actor David Corenswet Ate and Trained to Get Buff for the Movie, According to His Personal Trainer

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how David Corenswet transformed his body for ‘Superman’ with intense workouts and a strict diet. His personal trainer reveals the exact fitness and nutrition plan behind the superhero physique.

How ‘Superman’ Actor David Corenswet Ate and Trained to Get Buff for the Movie, According to His Personal Trainer ( Photo Credit: business lnsider)

David Corenswet is the new face of Superman. But before he could wear the cape, he had to build the body for it. Playing a superhero isn’t just about acting — it also means looking the part. According to his personal trainer, David followed a strict workout and diet plan to transform his physique.

David started training months before filming began. His trainer shared that the goal was to create a strong, lean, and muscular body — just like the Superman fans expect to see on screen. The first step was weight training. Each day focused on a different muscle group. For example, one day was for chest and triceps. Another day was for back and biceps. He also did squats, deadlifts, and shoulder presses.

Cardio was also part of the plan. David did high-intensity interval training (HIIT) two to three times a week. The trainer said that rest and recovery were just as important. David slept 7–8 hours every night and took rest days to help his body grow stronger.

Diet played a huge role too. David ate a high-protein meal plan to support muscle growth. His meals included chicken breast, eggs, lean beef, fish, and protein shakes. He also ate lots of vegetables, sweet potatoes, brown rice, and oats for energy. Junk food was off-limits during training. He drank a lot of water and avoided sugar and alcohol completely.

His trainer said David was fully committed to the process. He never missed a session and followed the diet closely. The results are now clear in the official Superman photos and trailer.

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