Blueberries don't have many calories, but when picked straight off the bush they're bursting with flavor--nature's candy! Even frozen blueberries retain almost all of their excellent qualities and will keep for several years (when you visit us, ask about the best way to freeze your fruit). Loaded with antioxidants, research suggests that blueberries may prevent cancer, lower cholesterol, aid vision and lower the risk of strokes . Blueberries are nature's perfect food!