what is a prune

A prune is a dried plum, most commonly from the European plum (Prunus domestica) . Not all plum species or varieties can be dried into prunes. A prune is the firm-fleshed fruit (plum) of Prunus domestica varieties that have a high soluble solids content, and do not ferment during drying. Prunes are one of the few commercially available fruits that are allowed to tree-ripen before harvesting. Prunes are rich in potassium, a mineral that helps your muscles, nerves, and heart function properly. They are also a good source of both insoluble and soluble fiber, which helps keep bowel movements regular and moderate digestion. Prunes are used in preparing both sweet and savory dishes. It is worth noting that the phrase "you look like a prune" is a literal comparison to a wrinkly purple fruit.