As the saying goes, a healthy body begins with healthy kidneys, highlighting the importance of kidney health. So, what's good for kidney nourishment? We recommend a single food that not only nourishes the kidneys effectively but also has anti-aging properties. This magical food is—black beans. Let's take a look at the methods for nourishing the kidneys with black beans.
The Benefits of Black Beans
Black beans, also known as black soybeans or wu dou, are the seeds of the black soybean plant. Black beans have a protein content of 49.8%, the highest among all beans, which is more than twice that of beef, three times that of eggs, and sixteen times that of milk. They are also rich in other nutrients such as niacin, vitamin B1, vitamin B2, carotene, and trace elements like copper, cobalt, and iron. Black beans contain 18 amino acids, including the 8 essential amino acids required by the human body. The unsaturated fatty acid content in black beans reaches 80%, with an absorption rate of over 95%. In addition to meeting the body's fat needs, it also helps lower blood cholesterol. Black beans are essentially cholesterol-free and contain only plant sterols. These plant sterols are not absorbed or utilized by the human body; instead, they inhibit the body's absorption of cholesterol, thereby reducing blood cholesterol levels.
In Traditional Chinese Medicine, black beans are considered sweet and warm in nature, non-toxic, and they influence the Heart, Spleen, and Kidney meridians. They are believed to have the effects of nourishing the kidneys and yin, replenishing blood and brightening the eyes, and eliminating dampness to promote urination. They can be used as an adjunctive treatment for conditions like kidney deficiency causing lower back pain, blood deficiency leading to blurred vision, abdominal bloating and edema, and spontaneous or night sweating. According to the "Bencao Shiyi" (Supplement to Materia Medica) from the Tang Dynasty, black beans "warmly tonify, improve complexion, and turn white to prevent aging." Li Shizhen of the Ming Dynasty also fully affirmed the health benefits of black beans. The book "Yang Lao Feng Qin Shu" (Book for Caring for the Elderly) states: "Every morning, swallow 27 black beans with water; they are considered the grain for the five organs, preventing decline in old age. Beans come in five colors, each treating a different organ. Only black beans belong to the water element and are cold in nature; they are the grain for the kidneys and thus have the greatest effect on the kidneys." In addition, Zhang Jiebin, a physician of the Ming Dynasty, recorded a "recipe for prepared black beans" in his "Jingyue Quanshu" (The Complete Works of Jingyue), which not only functions to nourish the kidneys and replenish essence, and strengthen muscles and bones, but also beautifies the complexion and prevents aging.
Creative Ways to Eat Black Beans:
Sour and Spicy Black Beans
Take 500g of black beans, 100g of aromatic vinegar, 8g of brown sugar, 20g of wet starch, and an appropriate amount of chili powder and fine salt. Wash the black beans, soak them for a day, drain the water, and steam them until soft and cooked. Mix the aromatic vinegar, brown sugar, and wet starch together in a pot, and cook over low heat while stirring constantly until the mixture thickens. Add the steamed black beans to the pot, along with fine salt and chili powder. This can stimulate appetite, aid digestion, and nourish the kidneys while fighting aging.