appearance baby-beets beet beetroot beets beta-vulgaris bulb bulbs color coloration coloring colour colouration colouring cook cooked cooking edible flavor flavour food garden-beet nutrition nutritional red red-beet surface surfaces table-beet taproots texture textures vegetable vegetables cubed cubes cuisine diced ingredient produce root-vegetable cut half halved leaves raw sliced uncooked beetroot dye beta vulgaris betacyanins betaine betanin carotenoid crimson cultivar firm garden beet halves healthy nutritious purple radiating red beet red food colourant reddish rings root vegetable stain staining table beet