Which of the following is NOT a micronutrient?

Proteins are classified as macronutrients, which are essential nutrients needed by the body in larger amounts to provide energy and support growth, metabolism, and overall bodily functions. Macronutrients include carbohydrates, fats, and proteins, all of which play critical roles in generating energy and building body structures.

Micronutrients, on the other hand, are nutrients required in smaller quantities but are equally vital for good health. They include vitamins and minerals, both of which support various physiological functions such as immune response, bone health, and cellular processes. Water, while not typically classified strictly alongside vitamins and minerals, is essential for life and plays a crucial role in maintaining hydration and regulating bodily functions.

In the context of this question, recognizing that proteins serve as a major energy source and building block for the body helps clarify why they do not fit into the micronutrient category.