Antioxidant-rich foods are regularly encouraged as part of a healthy lifestyle, and research suggests that a diet high in antioxidants may even help to reduce the risk of death. While certain fruits and vegetables are often thought of as high-antioxidant foods, a new study conducted by Cornell University and published in the journal, Nutrients, produced surprising results. Pistachios have a very high antioxidant capacity, among the highest when compared to values reported in research on many foods commonly known for their antioxidant capacities, such as blueberries, pomegranates, cherries, and beets.