Antioxidant enzymes are proteins that help protect cells from damage caused by free radicals, which are unstable molecules that can harm cellular structures. These enzymes work by neutralizing free radicals, thereby reducing oxidative stress and promoting overall health. Common antioxidant enzymes include superoxide dismutase, catalase, and glutathione peroxidase. These enzymes are produced naturally in the body and can also be influenced by diet and lifestyle. Foods rich in vitamins and minerals, such as fruits and vegetables, can support the activity of antioxidant enzymes. Maintaining a balance of these enzymes is essential for preventing chronic diseases and promoting longevity.