High-carb advocate Harley aka durianrider is putting his money where his mouth is by challenging so-called "low-carb" ultra-marathoner Tim Olson to a marathon race.
Durianrider will donate $50,000 to Tim's favorite charity if Tim can beat him in a marathon while in a state of low-carb ketosis and not using any carbs during the race, such as Tim Olson's favorite race-time drink, Seirra Mist soda, or his sponsored high-carb VFuel energy gels.