Your liver is one of the most important organs in your body and is responsible for breaking down fats converting glucose to glycogen producing amino acids storing essential vitamins and minerals producing beneficial cholesterol and filtering harmful substances from your blood, just to name a few. Your liver also produces a key antioxidant known as the SOD enzyme that helps break down superoxidethe most common free radical in your body. The SOD enzyme can be found in foods such as broccoli, Brussels sprouts, barley grass, wheat grass, cabbage and most green vegetables. SOD can also be obtained through supplements or injections.