What are the fundamentals of nutrition?

To fuel the training sessions themselves, so you can perform and get the most out of them and to fuel and provide the building blocks to recover from and adapt in response to the training sessions, so you improve in your sport. Training is just the stimulus to become better. You become better in the recovery period following training, as your body repairs and alters your muscles, neurology and energy systems to be ‘fitter’. And nutrition is a key part of this.