The connection between diet and immune function is significant; a well-balanced diet rich in vitamins, minerals, and antioxidants is vital for maintaining a robust immune system. Nutrients like vitamin C, vitamin D, and zinc play crucial roles in immunological responses and protection against infections. Diets lacking in these nutrients can weaken immune defenses, making individuals more susceptible to illness. Therefore, prioritizing nutrient-dense foods, such as fruits, vegetables, lean proteins, and healthy fats, supports overall immune health and resilience.