Micronutrient

Micronutrients represent a diverse group of essential dietary components, including vitamins and minerals, that are required by the human body in small quantities for growth, development, and physiological maintenance (WHO, 2023). Unlike macronutrients, they do not provide energy directly but serve as critical components for metabolic pathways, acting as cofactors for enzymes, regulators of gene expression, and antioxidants (Harvard T.H. Chan School of Public Health, 2024). This term is considered 'incorrect' or 'too broad' as a therapeutic target because it encompasses hundreds of distinct chemical entities rather than a specific protein or receptor. Deficiencies in specific micronutrients can lead to significant clinical pathologies such as iron-deficiency anemia or vitamin D-related bone disorders, while excessive intake can lead to systemic toxicity (NIH, 2023). In a pharmacological context, while micronutrients are frequently used as therapeutic agents (supplements), they are not typically defined as 'targets' themselves; rather, they are ligands or cofactors that modulate the activity of various enzymes and receptors. Many drugs can interfere with the absorption or metabolism of micronutrients, necessitating clinical monitoring of their levels during certain pharmacotherapies (StatPearls, 2023).

Other names

Vitamins and mineralsTrace elementsDietary mineralsEssential nutrients

Micronutrients function primarily as essential cofactors or coenzymes that enable enzymatic reactions, act as antioxidants to neutralize reactive oxygen species, or provide structural integrity to tissues like bone (NIH Office of Dietary Supplements, 2023).