Micronutrients, including vitamins and minerals, play a pivotal role in supporting immune function. Nutrients like vitamin C, vitamin D, zinc, and selenium are essential for the development and functioning of various immune cells. They help the body mount an effective response to pathogens and may reduce the risk of infections. A deficiency in key micronutrients can lead to weakened immunity, making the body more susceptible to illness. Therefore, a balanced diet rich in diverse micronutrients is crucial for maintaining optimal immune health.