Dietary changes that can improve immune function include increasing the intake of vitamin C, vitamin D, and zinc. Foods rich in antioxidants, like fruits and vegetables, help combat oxidative stress and support overall health. Incorporating a variety of probiotics, such as yogurt and fermented foods, can improve gut health, which plays a crucial role in immune responses. Reducing processed foods and sugars can also enhance immune function by minimizing inflammation. Moreover, maintaining adequate hydration is vital for overall health, including immune efficacy.