Which of the following is NOT one of the three macro nutrients?

Vitamins are essential nutrients, but they are categorized as micronutrients rather than macronutrients. Macronutrients include fats, proteins, and carbohydrates, which are dietary components needed in larger amounts to provide energy and support bodily functions. Each macronutrient plays a specific role: fats provide energy and help in absorbing certain vitamins, proteins are vital for growth, repair, and maintenance of body tissues, and carbohydrates serve as the primary energy source. In contrast, vitamins are required in smaller quantities and are crucial for various physiological processes, but they do not provide energy and are therefore not classified as macronutrients.