No, I'm not taking about grass, I'm taking about Superoxide Dismutase (SOD). In the book Critical Reviews of Oxidative Stress and Aging, JS Beckman reports that SOD stops an oxidant called peroxynitrite in its tracks. In fruit flies, the removal of SOD resulted in a 60% reduction in their life span. Adding SOD corrected that outcome.
While we are not fruit flies, it may be a good thing to consider adding SOD to your supplements. I have.