Dietary zinc plays a crucial role in the immune system by supporting cellular function, enhancing the activity of immune cells, and promoting the production of antibodies. It contributes to several physiological processes, including DNA synthesis and protein metabolism, vital for growth and repair. Adequate zinc levels are necessary for a proper immune response, helping to fend off infections and diseases. Deficiencies in zinc can impair immune function, leading to increased susceptibility to illness. Therefore, ensuring sufficient zinc intake is essential for maintaining overall health and resilience against pathogens.