Which nutrient is most important for quick energy release during high-intensity workouts?

Carbohydrates are the primary macronutrient utilized for quick energy release during high-intensity workouts. When engaging in activities that require rapid bursts of energy, such as sprinting or high-intensity interval training, the body relies predominantly on glycogen, which is stored in muscles and the liver. Glycogen is derived from carbohydrates and can be quickly converted into glucose, the simplest form of sugar, which is then readily used by muscles during intense exertion.

In contrast, proteins primarily serve as building blocks for muscle repair and maintenance and are not a quick source of energy. While they can be used in energy production, this occurs mainly when carbohydrate stores are depleted, making them an inefficient choice for immediate energy during intense exercise. Fats can provide energy but are metabolized more slowly and are thus less effective at supplying quick bursts of energy when the body demands it. Vitamins play essential roles in metabolic processes and overall health but do not directly provide energy.

Thus, carbohydrates stand out as the most important nutrient for quick energy release, especially during high-intensity workouts.