Cashew nuts are also called tree cashews, chicken cashews and longevity fruit. Evergreen tree with erect trunk, up to 10 m. Cashew nut is a kidney-shaped nut, belonging to Sapindaceae, Uraciaceae and Cashew. It has rich nutritional value and can be used in cooking and medicine. It is one of the four famous dried fruits in the world. Its edible part is the kidney-shaped part planted at the top of the fake fruit, about 25mm long, ranging from bluish gray to yellowish brown (if the person with white color is found during selection, it may be bleached, so don't buy it). The fruit shell is hard, with seeds wrapped inside, sweet as honey and high in calories. The main source of calories is fat, followed by carbohydrates and protein. It originated in America.