Fury vs Usyk is set for May 18Credit: Getty

They were initially scheduled to duke it out on February 17 but the date was pushed back by a month after Fury suffered a cut in sparring.

Boxing’s rumour mill began swirling with unsubstantiated claims that Fury had been having issues in camp prior to the delay.

In response, Fury came out and silenced the doubters by releasing pictures of himself looking in tip-top condition.

The Morecambe-native has always carried a bit of extra timber around his midriff but ahead of the four-belt shootout he is looking trim.

Much of his stunning transformation can be attributed to the rigorous diet Fury has been following in the lead-up to fight night.

The WBC champion’s nutritionist, Greg Marriot revealed to Men’s Health that Fury eats six meals a day varying in calorific density depending on whether he is training or not.

On rest days Fury eats 3000 calories of food while on training days he wolfs down somewhere between 4,500 and 6,000 calories.

Day of eating

Fury has recently undergone a drastic body transformationCredit: @greg_thenutritonist/GETTY

An average day starts with a high dose of vitamin C, collagen and black coffee.

This is followed by a hearty breakfast that alternates between a fry-up (avocado on toast, sausages, tomatoes and three eggs), an omelette or protein oats.

Once he completes his morning session, Fury eats protein granola, fat-free Greek yoghurt and blueberries before tucking into a lunch consisting of chicken, rice and feta salad.

At mid-afternoon, Fury tackles another large snack: five rice cakes, natural peanut butter and a side of watermelon with a large whey protein beef isolate to wash it all down.

For dinner, Marriot says the most common meal is a big 400-gram filet steak, roasted potatoes, a dollop of Dijon mustard and veg.

Fury’s day of eating ends at 8pm when he devours another fat-free Greek yoghurt with peanut butter and vanilla essence.

Meanwhile, throughout the day he will take a number of supplements including Dextrin carb powder, magnesium and Atlantic fish oil.

Cheat meals

Fury eats 6000 calories a day in campCredit: Instagram – @kristianblacklock

Fury, like all the boxers Marriott works with, is allowed cheat meals.

“Every boxer I work with has cheat meals,” Marriott said.

“It just mentally does something to them, they look forward to it, but he’s not demanding, you know, big dirty meals.”

When he’s out of camp Fury likes to gorge on as much as he can.

During lockdown in 2020, Fury bought £557 worth of pizza.

“It was the heavyweight champion of takeaways!” he said of his greasy feast.

“I just kept eating until I couldn’t eat any more. Pizza after pizza after pizza; it was a binge.

“I had a treat day yesterday, actually: a full box of Thornton’s chocolates. I had a Sunday dinner, two bowls of trifle, a McDonald’s triple cheeseburger, two Diet Cokes and a bar of chocolate.”

Of course, Fury is not allowed to eat like this during camp.

His favourite cheat meal is far less gluttonous.

“Fish fingers, chips and beans,” he told the Sun. “Very simple, I’ve even ordered it in five-star restaurants.”

He also names turkey dinosaurs among his biggest guilty pleasures.

“Yeah, he’s got a lot of funny guilty pleasures!” Marriot told the Lancaster Guardian.

“He’s definitely got a sweet tooth too, but if you bread stuff and crisp stuff up, it’s definitely a lot more enjoyable than a regular grilled chicken.

“But I think it’s because he’s got seven kids, you know what I’m saying? Just probably indulging in a couple of freaking chicken nuggets here and there!”

As for what he is not so keen on. Marriot added: “He’s not a big fan of veg, so I cook a lot for long periods of time to mask the flavour. I’ll do it with chicken broth or bone broth.

“Or you can do it in a rice for a long period of time, so you can’t really taste it and blend it in. But as the camp progresses, obviously veg has got to go up to make sure they’re getting all their micronutrients.”