Reactive Oxygen Species
Reactive Oxygen Species (ROS) are highly reactive molecules, produced mainly by mitochondria in the process of cellular respiration. ROS are important metabolic mediators that, at appropriate levels, are involved in diverse cellular processes such as signal transduction, regulation of gene expression and cell proliferation. Under normal conditions, ROS play a beneficial role in the body by fighting against microorganisms and stimulating antioxidative processes. However, in excess, ROS can cause oxidative damage to cells and cause a range of diseases, including cancer, neurodegenerative diseases and cardiovascular diseases. Therefore, it is essential to regulate ROS levels to maintain optimal health. The best way to do this is to increase the body’s natural antioxidant production as well as to use dietary sources of antioxidants such as vitamins A, C, E and selenium which help to neutralize free radicals.
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