Black radish has a rough black skin with hot flavoured white
flesh. Radishes have around twice the vitamin C of carrots but six
times less than broccoli. Radish leaves contain almost six times
the vitamin C content of their root. As a root vegetable its
mineral and vitamin content is about average. Many websites say it
is a good source of calcium but broccoli, carrot and celery have
significantly more. However, as a source of vitamins and minerals
that will store through the winter radish is a winner.