How an athlete’s body utilizes energy is infinitely more critical than that of their sedentary peers.
It’s not just what you eat, nor how much, but also when you eat.
Nutrient timing takes into account the times for which an athlete needs the greatest amount of energy while also balancing their energy throughout the rest of the day. “Being more sufficient with the macro nutrition…we know we can put out a better workout,” explains performance nutritionist Krista Austin, PhD. “The bonus for the body is it helps optimize our body composition.”
Energy flux is the rate at which the body turns over fuel. Ideally an athlete wants to keep pace with calories in versus calories out. This allows the runner to meet energy demands during training and maintain body composition. So long as overall calories are kept in check, you reduce the risk of storing excess body fat.
Meb Keflezighi is a prime example of effective nutrient timing. “Now, his carbs are much more controlled versus when he was younger,” shares Austin.