The relationship between nutrition timing and performance lies in optimizing energy levels. Consuming the right nutrients at strategic times provides the body with essential energy for workouts and aids recovery. Pre-exercise meals can enhance performance by ensuring that glycogen stores are adequately filled, while post-exercise nutrition, particularly protein and carbohydrates, helps in muscle recovery and growth. Proper timing can affect endurance, strength, and overall athletic achievement, making it crucial for athletes to understand when to refuel.