The connection between nutrition and immune function is critical, as a well-balanced diet provides essential nutrients that support immune health. Micronutrients such as vitamin C, vitamin D, and zinc play vital roles in enhancing immune responses and protecting against infections. A diet rich in fruits, vegetables, whole grains, and lean proteins delivers antioxidants that help combat oxidative stress and inflammation. Adequate hydration and regular nutritional intake contribute to optimal immune function. Thus, proper nutrition is fundamental to maintaining a strong and effective immune system.