David Corenswet Superman Workout & Diet Plan

Key Takeaways

• To build his Superman physique, David Corenswet followed a push-pull-legs split, focused on heavy compound lifts in the 6-to-12-rep range, and ate about 4,500 calories a day. Working with trainer Paolo Mascitti, he gained nearly 40 pounds, reaching 238 pounds at 6'4". 
• His workout was a classic push-pull-legs routine, training five or six days a week before filming, then three or four during filming. Progressive overload, adding a little weight each week, sat at the center of every session.
• His diet drove most of the size gain. He ate roughly 4,500 calories across six or seven meals, with protein near 1 gram per pound of body weight (about 250 grams a day), building up gradually so the gain was muscle.
• Nothing about the approach was exotic. As he put it, the plan came down to lifting heavy, eating a lot, and sleeping as much as possible, with a short, gentle cut before filming to sharpen his look while protecting muscle.
• A heavy, compound-lift routine like Corenswet's needs the right gear, and SOLE Fitness delivers it with adjustable SW180 dumbbells (5–80 lbs), an Olympic SW111 barbell, and a bench-and-rack setup.

What Is the Formula Behind Corenswet's Superman Build?

David Corenswet built his Superman physique with progressive strength training, a calorie surplus, and months of consistency. Working with trainer Paolo Mascitti, he followed a push-pull-legs split centered on heavy compound lifts while eating enough to gain nearly 40 pounds before filming. The goal wasn't a shredded look, but a powerful, athletic body built for performance.

Preparing to become Superman proved just as challenging mentally as it was physically. Corenswet has said he wanted to use the role as an opportunity to see how much size he could naturally add, describing the rapid weight gain as an adjustment for his body. 

Meanwhile, fans closely followed his transformation as training photos and trailers appeared online, with many praising how closely his broader build and classic proportions resembled the Superman seen in the comics. Director James Gunn also emphasized that the aim was a strong, believable Superman rather than an exaggerated bodybuilder physique. 

Train the same strength-first way at home with SOLE Fitness. Adjustable dumbbells, barbells, benches, and the SOLE+ app make it easy to follow a structured program. 

David Corenswet's Superman Workout Split

The training was a classic push-pull-legs (PPL) routine, picked by James Gunn after he watched Mascitti transform actor Flula Borg for The Suicide Squad. Each session focused on one movement pattern: pressing exercises one day, pulling exercises the next, and legs after that, before the cycle restarted. That rotation let Corenswet hit every major muscle group hard while giving each a few days to recover.

His frequency shifted with his schedule. In the run-up to filming, he trained five or six days a week to drive the gain, then settled into three or four sessions a week once shooting began and his days filled up. The split held either way, since a PPL plan scales cleanly with how often you can get to the gym.

A push-pull-legs split built on compound lifts and weekly progressive overload is what drove Corenswet's gains, not any specialized technique.

Push, Pull & Leg Days

Push days were built on bench press and overhead pressing, the two lifts that put size on the chest, shoulders, and triceps. He finished those sessions with isolation work like cable flies, reverse flyes, and triceps pushdowns to fully fatigue the smaller muscles.

Pull days centered on rows, pull-ups, lat pulldowns, and deadlifts. That combination thickened his back and widened his upper body, which is what gives the Superman build its tapered look from shoulders down to waist. Biceps curls closed out the day.

Leg days leaned on high-bar squats and lying hamstring curls. Mascitti has said Corenswet squats well but never warmed to lunges, so the plan kept the lifts he could load heavily and progress on rather than forcing movements he disliked.

Reps, Tempo & Technique

Progressive overload sat at the center of everything. Mascitti tracked the weight and reps for each lift and pushed to add a little each week, which is the simplest, most reliable way to keep building muscle over time. Most work landed in the 6–12 rep range, often around four sets of ten, with the occasional higher-rep finisher near 20 reps to burn out a muscle.

How he lifted mattered as much as how much. Corenswet trained through a full range of motion, controlled the lowering phase of each rep instead of dropping the weight, and stretched between sets. Those habits add tension and time under load, both of which promote growth, and they also lower the injury risk associated with rapid weight gain.

Core Work Built for Stunts

His abdominal training served a purpose, not just aesthetics. Gunn wanted a grounded, athletic physique rather than a shredded comic-book look. So, Corenswet's core workouts focused on stunt readiness. He needed the trunk stability to brace, balance, and move efficiently in a harness during wire and flight scenes. 

Planks, hanging leg raises, and similar midline drills gave him that strength. The visible definition came mostly from the diet phases rather than from chasing a six-pack in the gym.

David Corenswet's Superman Diet Plan

The diet accounted for most of the increase in size. Corenswet ate around 4,500 calories a day, building up gradually so the extra weight came on as muscle rather than pure fat. His macros leaned heavily on carbs and protein, with fats filling out the rest, with protein landing close to 1 gram per pound of bodyweight, which puts him around 250 grams a day, the figure he gave in interviews.

He spread that intake across five to seven meals to keep fuel steady through long training and filming days. As he put it, cooking eight eggs at home was far easier than ordering them at a restaurant, a sign of how much volume he was eating.

Hitting roughly 4,500 calories and 1 gram of protein per pound across six or seven daily meals is what made the lean mass gain possible.

What He Ate Each Day

The food was plain and protein-heavy. Eggs, dairy, poultry, red meat, fish, and whey protein covered his protein, while rice and sweet potatoes supplied the carbohydrates that powered his lifts. Vegetables rounded out most plates for fiber and micronutrients.

It was not perfectly clean every meal. Mascitti has said cereal was Corenswet's weak spot, with French toast and waffles showing up now and then. The consistency over months, rather than flawless eating at every sitting, is what caused his weight to go up. Supplements stayed minimal, with whey protein doing most of the heavy lifting.

The Bulk & the Pre-Filming Cut

His intake was not a flat number across the whole prep. During the main building phase, he ran the full 4,500 calories to support the surplus muscle gain. As filming approached, he eased intake down for a light cut.

That smaller deficit trimmed some of the bulk and sharpened his look while protecting the muscle he had added. Pairing a longer surplus with a short, gentle cut at the end is a common way actors arrive on set, both big and defined.

Want to Train the Superman Fundamentals With SOLE Fitness?

SOLE Fitness offers commercial-grade strength equipment, from adjustable dumbbells to the SRVO trainer, that runs the same compound lifts behind Corenswet's build at home.

Strip away the Hollywood scale, and Corenswet's plan is a lesson in the basics done well. A push-pull-legs split, a handful of compound lifts loaded a little heavier each week, enough protein, and the patience to repeat it for months built the entire physique. There was no secret method, just heavy bench presses, squats, rows, and overhead presses run with clean technique and controlled negatives.

Those are the exact lifts our strength range is built for. Our SW180 adjustable dumbbells move from 5 to 80 pounds for presses, rows, and curls, while the SW111 barbell, SW116 bench, and SW121 half rack cover heavy squats and bench work. When you buy a SOLE fitness machine, you also get free access to the SOLE+ app and its library of more than 3,000 guided workout classes. If you want to build the same fundamentals that helped shape this Superman, start with SOLE Fitness strength equipment. 

Frequently Asked Questions (FAQs)

How long did David Corenswet train for Superman?

Corenswet trained for roughly seven to ten months, starting in mid-2023. He worked out five or six days a week early on to drive the bulk, then dropped to three or four sessions a week once filming began, and his schedule tightened around shooting days.

Did David Corenswet use steroids for Superman?

Corenswet has said the gain was natural, built on heavy lifting, a large calorie surplus, and sleep, with no performance-enhancing drugs. His trainer confirmed whey protein was the main supplement. The fast 40-pound jump drew online debate, but both credited sound fundamentals over any shortcut.

How much protein did David Corenswet eat?

His protein intake was near 1 gram per pound of body weight, which put him at around 250 grams a day at his size. It came from eggs, dairy, poultry, red meat, and fish, with whey protein filling gaps across his six or seven daily meals.

Can a beginner follow the Superman workout plan?

Yes, with sensible adjustments. The push-pull-legs structure and compound-lift focus work at any level. Beginners should start with lighter loads, fewer weekly sessions, and a smaller calorie surplus, since gaining 40 pounds suited his role and frame rather than a typical fitness goal.

Can I follow the Superman workout with SOLE equipment?

Yes. SOLE strength equipment can support the entire split, with the SW180 adjustable dumbbells, SW111 Olympic barbell, SW116 weight bench, and SW121 half rack covering presses, rows, squats, and curls. If you want to add more advanced strength work, the SOLE SRVO trainer also offers an eccentric training mode for controlled negatives.

 

*Disclaimer: Products and prices mentioned in this article are accurate as of the date of publication and are subject to change. Please visit the official SOLE website for the most current information.