The efficacy and role of Huai Rehmannia: a medicinal treasure that nourishes yin and blood, clears away heat and promotes fluid production.

Rehmannia glutinosa, as one of the "Four Great Huaiqing Prefectures", is a commonly used nourishing medicinal material in traditional Chinese medicine. The most authentic one is produced in Jiaozuo, Henan (ancient Huaiqing Prefecture). Its core functions includeNourishes yin and nourishes blood, clears away heat and cools blood, produces body fluid and quenches thirst, it mainly treats symptoms such as Yin deficiency, internal heat, blood deficiency and chlorosis, and thirst for body fluids and wounds. Modern research also shows that it has the functions of regulating immunity and antioxidant. This article will focus on its traditional medicinal value, modern applications and precautions to help readers fully understand this excellent product that has the same source of medicine and food.

1. Traditional functions: “Guardian of liver and kidneys” that nourishes yin and nourishes blood.

In the theory of traditional Chinese medicine, Rehmannia glutinosa returns to the liver and kidney meridian. Raw Rehmannia glutinosa (fresh product) is cold in nature and grows longer thanClear heat and cool blood, often used for fever, polydipsia, blood-heat and bleeding; Rehmannia glutinosa (processed product) is warm in nature and focuses onNourish blood and nourish yin, is a classic medicinal material used to treat anemia, irregular menstruation, and liver and kidney yin deficiency. The ancient book "Compendium of Materia Medica" records that it "fills bone marrow, grows muscles, and produces essence and blood." Ming Dynasty physician Zhang Jingyue even called Rehmannia glutinosa "the main medicine for strengthening water", which shows its important status. It is commonly used clinically for the treatment of chronic diseases such as menopausal syndrome and diabetes due to yin deficiency syndrome.

2. Modern research: scientific verification of multiple effects

Modern pharmacology has discovered that Rehmannia glutinosa contains active ingredients such as catalpol and polysaccharides, and has the following effects:

It should be noted that its medicinal use requires syndrome differentiation and treatment, and it cannot be abused on its own.

3. Applicable groups and collocation taboos

Rehmannia glutinosa is suitableYin deficiency constitution(such as hot palms and soles, night sweats), anemia and physical weakness after surgery can be combined with angelica and wolfberry to enhance the blood replenishing effect. ButSpleen deficiency and dampness(Loose stools, thick and greasy tongue coating) and those with colds and fever should not use it to avoid aggravating symptoms. For daily dietary therapy, you can make stewed black-bone chicken with cooked rehmannia glutinosa, raw rehmannia glutinosa porridge, etc. It is recommended that the daily dosage does not exceed 15 grams (dry product). Long-term use requires doctor's advice.

4. Summary: Only through reasonable use can value be brought into play.

Rehmannia glutinosa is the core medicinal material of the "Yin-Building School" of traditional Chinese medicine, which has both traditional curative effects and modern scientific basis. When using it, it is necessary to distinguish the difference between raw and cooked effects, combine it with physical syndrome differentiation, and avoid eating it with radish, onions and garlic, which will affect the efficacy of the medicine. As a product of the same origin as medicine and food, appropriate amounts used in dietary therapy can nourish the body, but the treatment of diseases still requires professional guidance. Only with scientific understanding and rational application can the health-preserving value of this "King of Rehmannia glutinosa" be truly exerted.

Quote sources:
1. "Compendium of Materia Medica" (Li Shizhen, Ming Dynasty)
2. "The Complete Book of Jingyue" (Zhang Jingyue, Ming Dynasty)
3. "Chinese Pharmacopoeia" 2020 Edition
4. Public data from the Huai Yao research team of Henan University of Traditional Chinese Medicine