Protein plays a vital role in immune function by providing the building blocks necessary for producing antibodies and other immune cells. Sufficient protein intake helps maintain and repair tissues, ensuring the immune system operates at peak performance. It supports the formation of enzymes and hormones, key components in the body's defense mechanisms. Foods rich in protein, such as lean meats, dairy, legumes, and nuts, contribute to overall health. A balanced intake of protein is essential to strengthen immune responses, particularly during illness or periods of increased physical stress.