Introducing the newest nutritional weapon for the war against free radicals: GliSODin! The latest breakthrough in antioxidant supplements, GliSODin® is the first orally effective, plant-source form of superoxide dismutase (SOD), the body's master defense enzyme. Unlike most oral forms of SOD, which lose potency as they pass through the digestive tract, Swanson Ultra SOD Gliadin Complex features SOD combined with the protein gliadin through a patented process that protects the SOD from inactivation in the digestive tract. This allows it to retain its antioxidant properties and provide powerful free-radical protection for your eyes, joints, cardiovascular system, immune system and more. Studies have shown GliSODin to be effective in increasing the body's own production of SOD and other enzymes involved in cellular defense, including catalase and glutathione peroxidase. Make it part of your antioxidant arsenal for optimal free-radical protection