Recommended Intake of Carbs~Protein~Fat

Carbs~ 50%
For a highly active teenager, it is important to have much carbs. Carbohydrates give you energy for running and is what your body uses first for energy in activities.
Protein~ 30%
Proteins help your organs, muscles, and immune system to stay strong. Thay are used for energy, but are not the main source, so you would not need as much.
Fat~20%
Fats help your brain and nervous system to develop correctly. Fats are needed, but are not the most important when exercising because they have other jobs in your body.

The 40-30-30 diet is for an average person who is not as active. As an active teenager, you will need more carbs for energy for workouts.