Endogenous Antioxidant Systems

Endogenous antioxidant systems are important components of the body’s natural defense against stressors and oxidative damage. These systems include antioxidant enzymes, such as superoxide dismutase and catalase, as well as non-enzymatic antioxidants, such as glutathione and vitamins A, C, and E. By protecting against free radical damage, endogenous antioxidants work to maintain cell, tissue, and organ health, and are essential for proper functioning of the immune system. Endogenous antioxidants also help prevent chronic diseases and aging associated with oxidative stress. Additionally, studies suggest that the use of supplementation of exogenous, or dietary, antioxidants can support the body’s endogenous antioxidant systems.