The relationship between diet and immune function is significant, as certain nutrients play essential roles in supporting immune health. A well-balanced diet rich in vitamins, minerals, and antioxidants can enhance the body's ability to ward off infections. Nutrients such as vitamin C, vitamin D, zinc, and omega-3 fatty acids contribute to the proper functioning of immune cells. Conversely, a diet high in processed foods and sugars can impair immune response. Therefore, adopting a nutritious diet is crucial for maintaining a robust immune system.