CrossFit workouts and a 5,000-calorie diet are just the beginning.

Having already made videos in which he followed the workouts and diets of Aquaman‘s Jason Momoa and Wonder Woman’s Gal Gadot, for his most recent video, YouTuber Will Tennyson turned his attention to Man of Steel star Henry Cavill, and spent a day recreating the workouts and nutrition plan that the actor used when getting in shape to play Superman.

He starts the day off with a fasted workout, and while it only lasts 9 minutes, it packs in a lot of focus on strength and power with its CrossFit football exercises. The circuit consists of 3 reps of back squats at 225 pounds, 6 pullups, and 9 pushups, performed as many times as possible in the 9 minutes.

“That was way harder than I thought,” says Tennyson. “I didn’t think the pullups were going to be as hard as they were. Pushups and squats were easy, but my arms feel like they’re going to fall off… It wrecked me by the end, it definitely shows your weak links.”

After the workout it’s time for a breakfast of steak and eggs with a protein shake with oats, totalling 930 calories. This is followed by a 938-calorie “snack”: a mix of cottage cheese, protein powder, grapes, barley and sunflower seeds.

Tennyson waits a few hours and then tucks into his pre-workout meal—chicken curry with rice and an apple—before hitting the gym again for a chest and back workout. This comprises 4 sets of 5 incline dumbbell press, 4 sets of 5 flat dumbbell press, 4 sets of 5 weighted pullups, and 4 sets of 5 barbell rows.

After downing a 300-calorie post-workout shake, Tennyson eats his second lunch of the day, another chicken curry with potatoes (568 calories), and a snack of yogurt, protein powder and nuts (673 calories). “I don’t think that protein shake was necessary at all,” he says.

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I Tried Henry Cavill’s Diet & Training | 5,000+ Calories | CrossFit Football & Upper Body Workout
I Tried Henry Cavill's Diet & Training | 5,000+ Calories | CrossFit Football & Upper Body Workout thumnail
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There are still two more meals to get through, though; bison with pasta (763 calories) and one final protein shake with a scoop of greens powder (186 calories). At the end of the day, Tennyson has consumed 5,146 calories, including 493 grams of protein and 492 grams of carbs.

“I actually think a lot of the meals today are not necessary,” he says. “You don’t need supplements to build muscle, if you want to build muscle off whole foods only, that’s totally doable.”