Vitamin A

Vitamin A is a fat-soluble vitamin that is stored in the body as retinol, predominantly in the liver, but also in the retina, kidneys, lungs, adrenal glands, and fat. Vitamin A is required for growth and bone development, vision, reproduction, and the integrity of mucosal and epithelial surfaces. It is also important for immune function as it is required in maintaining sufficient levels of natural killer cells, and may increase the production of cytokines such as interleukin 1 (IL-1).

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