Beetroot powder is made from dehydrated beets that have been mixed or ground into a fine powder. "Every powdered food gets more concentrated," says Ginger Hultin, RDN, Seattle-based nutritionist and spokesman for the Academy of Nutrition and Dietetics. "The water has been removed and ground so that you ingest more than if you were to eat a whole beet, for example."
In general, beetroot powder also contains more nitrates and antioxidants than fresh beets, she adds. Plus, you don't have to worry about washing, chopping, or dyeing your clothes with beet juice.