Purple Ninja radishes were first released to the marketplace in September of 2015. They are medium sized, not to mention that they are distinguished by their vibrant purple exterior skin. In addition, these radishes offer a crisp bite and slightly spicy radish flavor. Nutrition-wise, Purple Ninja radishes are a great source of vitamin C, particularly when eaten raw. Besides, they also contain flavonoids and the antioxidant sulforaphane. Radishes in general are actually very filling, which means that they satisfy your hunger without running up the calorie count. Dieters everywhere would definitely love this!