Selenium is required for the synthesis of glutathione, which reduces oxidative stress and inflammation.

Study: Small molecule selenium-based Glutathione Peroxidase 4 mimetic inhibits lipid peroxidation and protects cultured neurons from ferroptosis.

This study shows that selenium is needed for a special enzyme that uses glutathione to protect cells from damage — like a selenium-powered bodyguard for your cells. Even though they used a lab-made molecule, it still proves selenium is key to how glutathione works.

Study: Selenium-dependent and non-selenium-dependent glutathione peroxidases in human tissue extracts.

Selenium helps a special enzyme use glutathione to clean up harmful stuff in your cells. This study shows that without selenium, that enzyme doesn’t work well, so selenium is important for glutathione to do its job.

Study: Selenomethionine as a dual-mechanism ferroptosis inhibitor: selenium-supply-driven GPX4 biosynthesis beyond transsulfuration and reductive-capacity-mediated ROS scavenging independent of GPX4 activity

This study shows that selenium helps the body use a key antioxidant called glutathione to fight harmful molecules that cause cell damage. Even when one pathway is blocked, selenium still helps protect cells, proving it’s important for this defense system.