What exactly does a fighter's diet look like if they want to reach the highest level?
For the WBC world heavyweight champion Tyson Fury it's a 5000 calorie a day pre-fight diet plan according to his long-time nutritionist and chef George Lockhart.
Lockhart has worked with some of the biggest names in combat sports including UFC superstar Conor McGregor, but now he is looking to get The Gypsy King in peak condition ahead of his trilogy fight with Wilder.
"First thing in the morning Tyson is definitely going to have a coffee with his breakfast and what he eats is dictated by the activities of the day," Lockhart told Coffee Friend when discussing Fury's diet plan.
"But one thing that’s constant every single day is he has: one fish, one chicken, and one red meat throughout the day in each one of his meals. It might go up and it might go down but he consumes about 5000 calories a day."
Lockhart also revealed that the 33-year-old heavyweight rarely craves certain foods when in camp and doesn't have any cheat meals.
"He doesn’t have any cheat meals, he does not really crave anything. He also gets things like yoghurts and fruit bowls, so we give him tons of antioxidants. He gets those with the fruit but through the coffee as well, which is great at getting rid of pre-radicals."
"When you workout as much as Tyson does you create a lot of pre-radicals. We want to make sure we keep that stress down and keep him healthy."
Fury will be hoping Lockhart's nutrition plan will play a vital part tonight when he takes on Deontay Wilder in their much anticipated trilogy fight at the T-Mobile Arena in Las Vegas, Nevada.
Watch a heated exchange between Fury and Wilder at yesterday's weigh-in below.