Gui Yuan is a fruit, Longan is a traditional Chinese medicine, both for the different parts of the same plant for food, traditional Chinese medicine, two names. Gui Yuan is a fruit name, for the Sapindaceae longan plant longan aril; Longan is the name of traditional Chinese medicine, for the Sapindaceae longan plant longan roots, leaves, aril and seeds, according to the specific parts of the traditional Chinese medicine is divided into longan root, longan leaves, longan meat, longan seeds. Longan meat and cinnamon are the aril of longan, but the method of serving them is different. Cinnamon is taken directly after peeling off the shell; longan meat needs to be removed from the shell and core, and then sun-dried until dry. Different parts of longan are used in medicine, with different effects and functions. It is recommended that if you take longan, you can use it under the guidance of a Chinese medicine practitioner.