Longan, longan, cat's eye, or in English it is called longan (Dimocarpus longan), is one of the plants belonging to the tribe Lerak-lerakan or Sapindaceae. This fruit plant comes from mainland Southeast Asia. The iron content in longan fruit is useful for producing red blood cells so you can avoid anemia. In addition, the iron content in longan fruit can stimulate the production of red blood cells and improve circulation