JAMAICA - Six Olympic Gold Medal holder and fastest man on earth, Usain Bolt, owes a lot to chicken nuggets. In fact, during his 2008 Olympic Games in Beijing, 1,000 of the McDonald’s staples fueled all three of his gold medal wins, he says. So why now is Usain giving up on his effective runner’s fuel? It’s all for the vegetables, he says. 

Now at the age of 28, the Jamaican superstar says he’s finally ready to change how he uses food to fuel his body.

"Food wise, I have to eat a lot more vegetables," he explained to CNN's Amanda Davies. "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."

In his autobiography Faster than Lightning, Usain estimated that he ate 1,000 McDonald's chicken nuggets during his 10 days in Beijing for the Olympics to avoid eating the country’s traditional cuisine. This comes out to a nauseating total of 5,000 calories and 300 grams of fat per day he spent there. 

His transition to veggies hasn’t been easy, he said, admitting he sometimes slips into old habits.  

"Sometimes you do think about just going out or just not training, or just eating a million hot wings. It's hard sometimes, because you crave it, because you're used to doing a certain thing,” Usain said. "It's hard to just walk away and not slip up sometimes. So it happens, but I try to not make it happen on the regular. I try to just contain myself as much as possible."

Since the switch to a more produce-centric diet, Usain has recorded his fastest time in this season, CNN reports, hitting 9.87 seconds at the Anniversary Games to take the gold medal in the 100m. 

Now planning his retirement from the Olympics at Rio 2016, Usain has no doubt this diet will take him to new heights there and in the future. 

"Yes, without a doubt [I can break them]. I think—and I've said it every year—if I just could get a season where I just go through with no problems, then I know that I'll be breaking world records easy,” Usain told CNN. 

I guess we’ll all get to see the power of produce in action at Rio de Janeiro come 2016.