1. Tonifying Deficiency and Resisting Decline

Chinese yam has the function of invigorating deficiency and benefiting loss. Chen Xiuyuan, a doctor in Qing Dynasty, once explained the function of Chinese yam. He said that it can invigorate kidney and fill essence because of its thick and sticky texture. Health net) Excellent foot strengthens Yin and prolongs life. Modern pharmacological studies suggest that yam contains saponins, glycoproteins, tannins, stopweight elements, yam alkaloids, choline, starch, calcium, phosphorus, iron and so on, which can induce interferon and have a certain anti-aging material basis. This shows that yam can indeed make up for deficiency and treat damage, prolong life.

2. Buzhong Yiqi

Chinese yam is rich in 18 kinds of amino acids, more than 10 kinds of trace elements, and other minerals, so it has the functions of invigorating the spleen and stomach, invigorating the lung and kidney, invigorating qi, invigorating the spleen and deficiency, strengthening the kidney and benefiting the mind and tranquilizing the mind. Li Shizhen's Compendium of Materia Medica has the theory of invigorating the spleen and benefiting the kidney, nourishing and strengthening the kidney, curing all kinds of diseases and treating five labors and seven injuries.

3. Nourishing Yin and Nourishing Yang

Chinese yam tonifies Yin and has the function of clearing deficiency and heat. Huang Guanxiu said in "Seeking Truth from Materia Medica" that Chinese yam belongs to food. Ancient people used Decoction to invigorate spleen, invigorate Qi and remove heat. Its color white into the lung, taste sweet into the spleen, although warm but flat gas, in order to invigorate the Yin of the spleen and lung, is to moisturize the skin, long muscle. It is astringent in nature, which can not help the treatment of spermatorrhea. It is sweet and salty in taste. It can also benefit the kidney and strengthen Yin. It can produce, tamp and apply carbuncle sore, reduce swelling and hardness. It is also the meaning of nourishing yin and reducing fever. The prescription of yam was used to treat fever, asthma, cough or spontaneous sweating; Zisheng decoction was mainly yam, with Scrophularia, Atractylodes macrocephala, Arctium lappa and chicken internal gold to treat Yin deficiency, fatigue and heat; astragalus extract was used as adjuvant to help Astragalus and gypsum to treat lung disease. Liquan drink is used with Chinese yam and the flavors of Rehmannia glutinosa, Tianmen Dongdong and Xuanshen to treat the deficiency of Yin and thirst. Yuzhu Yam decoction is used to treat thirst, while Yuzhu, Tianhua, Polygonum multiflorum, etc. are combined with Chinese yam to nourish Yin and nourish Jin. In all this, it can be seen that yam has certain effect of tonifying Yin and clearing deficiency and heat.

4. Strengthening the Spleen and Benefiting the Stomach

Yam contains amylase, polyphenol oxidase and other substances, which is beneficial to the digestion and absorption function of the spleen and stomach. Yam is a kind of medicinal and food dual-purpose product for tonifying the spleen and stomach. Whether Spleen-Yang deficiency or Stomach-yin deficiency, it can be eaten. Clinically, it is often used together with gastrointestinal drink to Treat Spleen and stomach weakness, food deficiency, body fatigue, diarrhea and other diseases.

5. Be Strong and Beautiful

Yam contains mucoprotein, a mixture of glycoproteins that can provide a large amount of human body. It can increase the lubricity of mucosa and skin and reduce the accumulation of subcutaneous fat. Yam is a good cosmetic food. It can be taken alone or in compound prescriptions. Yam porridge, yam wine, Liuwei Dihuang drink and Zishen Shenshenggan drink all have the functions of strengthening muscles and bones, nourishing the face and keeping fit.

6. Control appetite

Yam is rich in protein, B vitamins, vitamin C, vitamin E, glucose, crude protein amino acids, bile alkali, allantoin, etc. Among them, Dioscorea soap, an important nutrient, is the precursor of the synthesis of female hormones, nourishing yin and yang, and enhancing metabolism; while the mucus and digestive enzymes of polyglycoprotein components contained in fresh tubers can prevent heartburn. Tubular fat deposition is helpful for digestion and absorption of gastrointestinal tract.

7. Benefiting the lung and relieving cough

Yam contains saponins, mucus, lubrication, moisturizing effect, so it can benefit lung qi, nourish lung yin, treat lung deficiency, phlegm and cough for a long time.