Kidney yang deficiency refers to a syndrome characterized by depletion of kidney yang and functional decline. Clinical manifestations include: soreness and pain in the lower back and knees, or impotence, cold semen, uterine coldness causing infertility in women, and decreased libido; or persistent diarrhea, undigested food in stools, and early morning diarrhea; or edema (more pronounced below the waist), with indentations remaining after pressure, and in severe cases, abdominal distension and pain, palpitations, shortness of breath, and coughing;pale or sallow complexion, aversion to cold with cold limbs (especially lower extremities), dizziness, lethargy, clear and prolonged urination or frequent nocturnal urination, pale and swollen tongue with white slippery coating, deep, slow, weak, or feeble pulse.
Dietary Therapy for Kidney Yang Deficiency:
1. Mung Beans: Neutral in nature, sweet in taste, with dual effects of tonifying the kidneys and strengthening the spleen. As recorded in Compendium of Materia Medica: "Mung beans tonify the kidneys and fortify the stomach, generating essence and marrow. In the past, Lu Lianfu taught people to replenish kidney qi by boiling mung beans daily on an empty stomach, adding a little salt before consumption."" The modern Sichuan Materia Medica also notes: "Yardlong beans nourish yin, tonify the kidneys, and strengthen the spleen and stomach. They treat leukorrhea, cloudy discharge, and seminal emission due to kidney deficiency." They are also suitable for those with frequent urination due to kidney deficiency.
2. Goji berries: Neutral in nature, sweet in taste, they tonify the kidneys and nourish the liver, benefit essence and improve vision, strengthen tendons and bones, relieve lower back pain, and promote longevity with prolonged use.They are especially beneficial for middle-aged and elderly individuals with kidney deficiency. As recorded in Ben Cao Tong Xuan: "Goji berries replenish kidney essence. When kidney essence is abundant, bones become strong, and ailments like diabetes, blurred vision, and lower back/knee pain are all alleviated." Ben Cao Jing Shu also states: "Goji berries are essential for replenishing deficiency of true yin in the liver and kidneys, and for treating fatigue and internal heat.Elderly individuals with yin deficiency account for seven or eight out of ten cases, hence it is regarded by practitioners as a superior tonic for enhancing essence and improving vision."
3. Cordyceps sinensis: Warm in nature and sweet in taste, it nourishes both the kidneys and lungs, serving as a precious herb for balancing yin and yang. The Compendium of Materia Medica states it "protects the lungs and benefits the kidneys." The Examination of Medicinal Properties also notes: "Cordyceps preserves essence, boosts qi, and specifically nourishes the gate of life."The Citrus Garden Notes further notes: "Soak several pieces in wine and consume to alleviate pain in the waist and knees, with notable kidney-nourishing effects." Though Cordyceps sinensis is a tonic with minimal side effects, it is rarely used directly in formulas. For kidney deficiency, it is most beneficial when stewed with meats like lean pork, chicken, or duck, or even fresh placenta, creating a nourishing dish.
4. Eucommia Bark: Warm in nature, sweet with a slight pungency, it fortifies the liver and kidneys while strengthening tendons and bones. It is most suitable for kidney deficiency-induced lumbar and spinal soreness, weak knees and legs, childhood kidney deficiency causing lower limb numbness, and habitual miscarriage due to female kidney deficiency.As Ming Dynasty physician Miao Xiyong explained: "Eucommia treats lumbar and spinal pain, nourishes essence and qi, strengthens tendons and bones, and alleviates soreness in the legs. Since the waist is the residence of the kidneys, instability indicates kidney exhaustion. Eucommia supplements this deficiency by benefiting the kidneys."
5. Polygonum multiflorum (He Shou Wu): Known for nourishing the liver and kidneys while enriching essence and blood, this herb has been used throughout history to treat kidney deficiency. Li Shizhen of the Ming Dynasty noted: "He Shou Wu nourishes blood and strengthens the liver, consolidates essence and benefits the kidneys, fortifies tendons and bones, and darkens hair and beard. It is a superior tonic herb, surpassing the efficacy of Rehmannia glutinosa and Asparagus cochinchinensis."" The renowned Qing Dynasty physician Huang Gongxiu also remarked: "All texts extol He Shou Wu for nourishing kidney essence, darkening hair, and lightening the body." It is suitable for those with kidney deficiency manifesting as premature graying, weak knees and lower back, aching bones and tendons, male seminal emission, or female leukorrhea.
6. Sea Cucumber: Warm in nature and salty in taste, its soft texture paradoxically nourishes kidney yang energy, making it a dual tonic for both kidney yin and yang. As Ben Cao Cong Xin states: "Sea cucumber supplements the kidneys, enriches essence, strengthens yang, and treats impotence." Sui Xi Ju Shi Yin Pu also notes its ability to "nourish yin and invigorate yang." Thus, it is suitable for all with kidney deficiency.
7. Royal Jelly: A comprehensive tonic. Fresh royal jelly is the world's only superfood containing highly active components suitable for direct human consumption. It promotes calmness and sleep, regulates blood pressure, protects the liver and prevents cancer, enhances brain function and intelligence, prolongs life, beautifies the skin, nourishes the nervous system, and strengthens hematopoietic function.
Additionally, Traditional Chinese Medicine cupping therapy can be applied, focusing on the following points: Kidney Shu (BL23), Yang Guan (BL32), Waiguan (BL39), Dai Mai (BL20), Huantiao (GB30), Weizhong (BL40), and Guanyuan (CV4). Perform cupping once daily for 15–20 minutes per session; 5–7 sessions may lead to recovery.