Black beans are also an element of traditional Chinese medicine, with a reputation as an anti-aging agent that can keep eyes bright, hair lustrous, and skin beautiful. This comes from the fact that black beans contain no saturated fats and can burn cholesterol and lower blood pressure. Black beans are also better for softening hardened arteries and preventing blood clots than ordinary soybeans.
黑豆是古老的中藥材，具有「駐顏、明目、烏髮、使皮膚變白嫩」等功能，原因在於，黑豆的不飽和脂肪，可促進膽固醇的代謝、降低血脂；對降低動脈血管硬化、預防血管栓塞，黑豆的效果也比黃豆好。