Individually wrapped bars. Pack a snack! At work! At play! At lunch! Natural source of flavanol antioxidants. The natural antioxidants found in tea and certain fruits can also be found in Hershey's Special Dark dark chocolate. Enjoy in moderation as part of a healthy diet and active lifestyle. One serving contains 220 calories and 13 g of fat. Hershey's Special Dark dark chocolate contains 45% cacao.