1, tonifying kidney and nourishing yin, used for kidney deficiency and thirst quenching, infertility, tinnitus and deafness, spontaneous sweating and night sweats.

2, blood, used for blood deficiency, blurred vision.

3, promoting blood circulation and eliminating dampness, used for edema, beriberi, jaundice, edema, rheumatism, tendon contracture and bone pain.

4, expelling wind and detoxifying, used for carbuncle swelling and sore poison, black beans can also detoxify arsenic, kansui, Tianxiong, aconite, croton and Mylabris.

5. Black beans have a high content of protein in plants, and contain certain carotene and vitamins. Although it has medicinal value, it is hard and difficult to digest. People with anorexia and indigestion should not eat more.