The protein content of black beans is 49.8%, ranking first among all beans, more than twice that of beef, three times that of eggs and 16 times that of milk. Black beans basically contain no cholesterol, only phytosterol, which can't be absorbed and utilized by human body, and has the function of inhibiting human body from absorbing cholesterol and reducing blood cholesterol content. Traditional Chinese medicine believes that black beans are sweet and non-toxic, and belong to the heart, spleen and kidney meridians. It has the effects of tonifying kidney, nourishing yin, enriching blood, improving eyesight, eliminating dampness and promoting diuresis, and can be used for adjuvant treatment of lumbago due to kidney deficiency, blood deficiency, abdominal distension and edema, spontaneous sweating and night sweats. The following are several recipes for dietotherapy of black beans for readers' reference:

Black bean Sydney soup take 30 grams of black beans, 1 ~ 2 Sydney. Wash and slice Sydney, wash black beans, put them in a pot, add appropriate amount of water, boil over high fire, and then cook over low fire until cooked. Take it twice a day, 1 month. This prescription has certain curative effect on premature gray hair and rough skin caused by deficiency of lung and kidney yin.

Take 500g of hot and sour black beans, 0/00g of balsamic vinegar/kloc-,8g of brown sugar, 20g of wet starch, appropriate amount of Chili powder and refined salt. Soak the black beans for one day after washing, drain the water and steam them in water until they are cooked and soft. Stir the balsamic vinegar, brown sugar and wet starch together, put them in a pot, cook them with a spoon and stir them with low fire until they are thick, pour the steamed black beans into the pot, add refined salt and Chili powder, and mix well to taste. Serve. This can stimulate appetite, promote digestion, tonify kidney and resist aging. Black beans and japonica rice100g, sappan wood15g, Spatholobus suberectus 30g, rhizoma corydalis powder 5g, and proper amount of brown sugar are taken for black beans and blood-activating porridge. First, wash the black beans, put them in a pot, add appropriate amount of water, and cook until they are 70% mature. In addition, hematoxylin and Spatholobus suberectus were boiled in water for 40 minutes, and the residue was filtered. Boil the liquid medicine and black beans at the same time. When it is ripe, add japonica rice, Rhizoma Corydalis powder and appropriate amount of water, cook until cooked, add brown sugar and stir well. This prescription has the effects of tonifying kidney, promoting blood circulation, dredging collaterals and relieving pain, and is suitable for patients with vascular headache of qi stagnation and blood stasis type.