(CNN) Since Lewis Hamilton became vegan, weekends have not been the same for the four-time Formula One world champion. That is something I'd recommend for vegan athletes anyway," says Ostrowe. "In terms of the normal individual, there are a lot of mixed reviews out there in terms of how the vegan diet can affect testosterone. What makes traveling more challenging for vegan athletes is the need to eat regularly. He will be sweating a lot in the car and he needs to make sure he's replenishing those electrolytes and fluids."

Source: CNN November 24, 2017 14:15 UTC