David Haye

"I watched a TV documentary about how animals are farmed, killed and prepared for us to eat. I saw all those cows and pigs and realised I couldn’t be a part of it any more. It was horrible. I did some research to make sure I could still obtain enough protein to fight and, once satisfied that I could, I stopped [eating animal products]. I’ll never go back."

"I think that [as a vegan] I’m now fitter than I've ever been. I punch harder than ever. I’m more determined. I’m faster. … Diet’s the biggest thing, because your body is a machine."