He sprinted his way to fame at the 2008 Beijing Olympics, winning three gold medals and setting a trio of world records -- and all powered by a diet of fast food.
Usain Bolt's love of junk food -- especially chicken nuggets -- has been well documented, but now at the age of 28, the Jamaican is ready to change the way he refuels.
"Food wise, I have to eat a lot more vegetables," he explained to CNN's Amanda Davies, almost sounding like a boy being told by his mother to finish his greens.
"I have to cut junk food out. I think that's one of the biggest things for me, because I get a lot of urges at late nights, just to eat junk food. For me, that personally is one of the biggest sacrifices."
And it really is a sacrifice given Bolt estimates in his autobiography "Faster than Lightning," that he had devoured 1,000 McDonald's chicken nuggets during his 10 days in Beijing -- a whopping 5000 calories and 300 grams of fat a day, all because he found Chinese food "odd."
Vegetables may be a new addition on the Bolt menu, but don't expect him to be cooking them.
"I can't cook, that's the one thing I can't do, though I can make scrambled eggs," he confessed ahead of the Anniversary Games in London.