Jujube is a jujube plant of Rhamnaceae, which turns red when it matures. Often dried in the sun to make dried dates. Its vitamin content is very high and it has the reputation of "natural vitamin pills". Jujube, also known as jujube, dried jujube and jujube, originated in China and has been planted for more than 8,000 years. It has been listed as one of the "five fruits" (chestnut, peach, plum, apricot and jujube) since ancient times.