Saskatoon Berries rank highest in antioxidants and in both fresh fruit and fruit pulp relative to other common fruits. In fact, the Saskatoon Berry has twice the levels of antioxidants than even the best blueberries. The high levels of antioxidant in Saskatoon Berries act as a protective guard to our immune system. They help neutralize major free radicals in our bodies protecting against various diseases including diabetes, heart disease and cancer. The antioxidants in Saskatoons also defend against inflammatory illnesses and help reduce oxidative stress associated with aging.