Essential nutrients for energy metabolism include carbohydrates, proteins, and fats, which serve as the primary energy sources for the body. Carbohydrates break down into glucose, providing immediate energy for high-intensity activities. Proteins play a role in muscle repair and growth, while healthy fats are crucial for sustained energy during low to moderate-intensity exercise. Furthermore, micronutrients like B vitamins are vital for energy production at the cellular level. Ensuring an adequate intake of these nutrients supports overall physical performance and metabolic efficiency.