Metal transporters are specialized proteins that facilitate the movement of metal ions across cell membranes. These proteins play a crucial role in maintaining metal ion homeostasis, which is essential for various biological processes. They ensure that cells receive the necessary metals, such as iron, copper, and zinc, while preventing toxic accumulation. In addition to their role in cellular transport, metal transporters are involved in the absorption of metals from the diet and their distribution within the body. Dysfunction in these transporters can lead to metal-related disorders, highlighting their importance in health and disease management.