Which macronutrient is NOT considered a major nutrient?

Vitamins are classified as micronutrients rather than macronutrients. Macronutrients include fats, carbohydrates, and proteins, which are required in larger amounts and provide the energy necessary for bodily functions and activities. Fats serve as a concentrated energy source and are essential for hormone production and cell structure. Carbohydrates are the body's primary energy source, fueling physical activity and supporting brain function. Proteins are crucial for growth, repair, and maintenance of body tissues, and they play a significant role in enzyme and hormone production. In contrast, vitamins, although vital for various biochemical processes, are required in smaller amounts and do not provide energy directly. This distinction makes vitamins part of the micronutrient category, differentiating them from macronutrients.