Pitaya, also known as red dragon fruit. Native to tropical Central America. Pitaya is rich in nutrition and unique in function. It contains plant albumin and anthocyanins, and is rich in vitamins and water-soluble dietary fiber, which are rare in general plants. Therefore, it has the following unique functions: 1. Detoxification and protection of stomach wall; 2. Anti-aging, prevent brain cells from degenerating, and inhibit the occurrence of dementia; 3. Whitening and skin care; 4. Lose weight, lower blood sugar, moisten intestine, prevent large intestine, prevent colorectal cancer, etc. Pitaya juice is sweet and delicious. Besides fresh food, it can also be used for brewing wine, canning and making jam. Flowers can be dried and made into vegetables, and their colors can be extracted from food pigments.