Which of the following is NOT considered a macronutrient?

Vitamins are not classified as macronutrients because they are required by the body in much smaller amounts compared to macronutrients. The macronutrients—protein, fat, and carbohydrates—are the main components of our diet and provide the calories and energy necessary for the body's functions.

Protein is crucial for the growth and repair of tissues, fat serves as a concentrated energy source and is vital for absorbing certain vitamins, and carbohydrates are the body's primary source of energy. Each of these macronutrients plays a distinct role in maintaining health and supporting bodily processes.

In contrast, vitamins are considered micronutrients, which are essential for various biochemical functions but are needed in smaller quantities. They support processes like metabolism, immunity, and overall health without providing energy in the same way macronutrients do.