Three blacks include black beans, black glutinous rice and black sesame. Three reds are red beans, red dates and red wolfberry.

Black bean is a typical high-protein and low-fat food, which is rich in vitamin E, anthocyanins, isoflavones and trace elements such as zinc and copper. Black sesame is rich in high-quality protein, sesamin and melanin, while black rice is rich in protein, cellulose and vitamins. If the three are combined, the nutrition will double, and moderate consumption can intake a lot of nutrition for the body.

Among them, jujube is sweet and warm, and is rich in protein, sugar, organic acids, vitamin A, vitamin C, various trace calcium and amino acids.