Nutrition is an important component in maintaining good health. Various nutrients are essential for maintaining a functional immune system. Fatty acids, vitamins, and minerals enhance s the production and activity of cytokines which are chemical signaling molecules that regulate s the immune response. Complex inter-relationships exist among certain micronutrients, immune function and disease resistance in animals Chromium supplementation has been found to improve cell-mediated and humoral immune responses. Selenium and vitamin E enhances the ability of isolated neutrophils to kill bacteria. Copper enhances the production of antibodies, cell-mediated immunity, interferon, and tumour necrosis factor by mononuclear cells. Zin c plays an important role in maintaining innate immunity. Cobalt deficiency has been associated with reduced resistance to parasitic infestation. Vitamin A-deficient animals are more susceptible to various types of infections. Antioxidant properties of β-Carotene affect immune function and disease resistance independent of its role as a precursor of vitamin A.
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