Which nutrient category is least likely to provide immediate energy?

Vitamins are classified as micronutrients and play an essential role in various biochemical processes in the body, including metabolism, but they do not provide energy in the form of calories. Unlike macronutrients such as carbohydrates, proteins, and fats, which can be broken down to release energy for immediate use, vitamins do not serve as a direct energy source. Instead, they assist in the conversion of macronutrients into usable energy and help with other critical functions in the body.

Carbohydrates are typically the body's primary source of energy, particularly for high-intensity activities, while fats provide a more sustained energy source during lower-intensity activities. Proteins can be used for energy, but primarily serve other functions like tissue repair and growth. Therefore, vitamins, lacking caloric value, are the nutrient category least likely to provide immediate energy.