Although a mouthful, Superoxide Dismutase, or SOD for short, is the anti-oxdative enzyme that packs the biggest wellness punch in Chaga mushrooms. SOD is an enzyme that catalyzes the breaking apart and disarming of free radicals in the body, most notably the superoxide radical. Free radicals are harmful molecules with unpaired electrons that seek to scavenge more electrons from other molecules, causing damage to DNA enzymes, proteins and cell membranes. SOD, as an antioxidant, works to donate an extra electron to the free radicals, therefore preventing any future damage that the free radical would have done. Chaga also contains 19 out of the 20 amino acids required by humans, which facilitates the bodies ability to rebuild itself. According to research conducted by Tufts University which was presented at the Institute of Health's National Project Expo in 2003, Chaga mushrooms contain more than 20 times more active SOD then agaricus, the next strongest medicinal mushroom, making them the most powerful option on the market.