What is the primary function of micronutrients in the body?

The primary function of micronutrients in the body is to assist in metabolic processes, which encompasses a wide range of biochemical reactions necessary for maintaining life. Micronutrients, including vitamins and minerals, play crucial roles in facilitating enzymatic reactions, supporting the immune system, and contributing to the production of energy from macronutrients. For example, B vitamins are involved in energy metabolism, while minerals such as zinc and magnesium are vital for various enzymatic functions that help in the synthesis of proteins and the production of cellular energy, especially during metabolic processes.

While the other options address important functions in the body, they do not accurately represent the primary role of micronutrients. Providing energy is primarily the role of macronutrients (carbohydrates, proteins, and fats). Aid in muscle recovery and facilitate muscle contraction are functions more directly related to macronutrients and specific proteins rather than the micronutrients themselves. Thus, the most correct answer highlights the essential contribution of micronutrients to supporting and regulating metabolic functions throughout the body.