An optimal immune response is dependent on an adequate diet and nutrition. Protein intake, for example, is critical for optimal antibody production. Low micronutrient status, such as vitamin A or zinc, is linked to an increased risk of infection. Poor nutrient status can lead to inflammation and oxidative stress, which can cause infection. Vitamin C, vitamin E, and phytochemicals such as carotenoids and polyphenols are dietary constituents with particularly high anti-inflammatory and antioxidant capacity.
