Djokovic should really give up on that vegan crap and start eating normally.Professional sport is not healthy in general and you can make it even worse if you dont have proper diet.
I'd disagree. I think the diet has definitely helped Djokovic. The veganism yes, a lot of other dominant sports stars are vegan, Lewis Hamilton as an example.
But the biggest dietary difference for Djokovic was when he ditched gluten. That's what turned him into a relentless winning machine.