Dioscorea, commonly known as yam. It is also called Ma yam in supermarkets in Hebei and other places. Perennial herb, with spreading stems, often purple, cylindrical roots, opposite leaves, oval or elliptical, milky white flowers, dioecious. The roots contain starch and protein and are edible. Nature, flavor and meridian tropism: sweet in taste and neutral in nature. Returns to the spleen, lung, and kidney meridians. Functions and Indications: Tonify the spleen and stomach, promote fluid production and benefit the lungs, nourish the kidneys and astringe essence. It is used for spleen deficiency, less food, persistent diarrhea, lung deficiency, asthma and cough, kidney deficiency, spermatorrhea, vaginal discharge, frequent urination, deficiency of heat and thirst. Stir-fried yam with bran nourishes the spleen and strengthens the stomach. It is used for people with spleen deficiency, less food, diarrhea, loose stools, and excessive leucorrhea. It can be consumed by the general population. 1． Suitable for patients with diabetes, abdominal distension, weakness after illness, chronic nephritis, and long-term diarrhea 2. Yams have the effect of astringent, so those with dry and constipated stools should not eat them; in addition, those with real evils should not eat yam. Foods conflict with each other: yam and rapeseed. Yams can replenish qi, while rapeseed can destroy qi. Eating them together will reduce the therapeutic effect. Yams and bananas can cause abdominal pain. Eating yam and persimmon together can cause stomach bloating, abdominal pain, and vomiting. Do not eat yam and kansui together, nor take them with alkaline drugs. Yams and Pork Liver Yams are rich in vitamin C. Pork liver contains trace elements of metals such as copper, iron, and zinc. Vitamin C will accelerate oxidation and destruction when exposed to metal ions, reducing the nutritional value. Therefore, you should not eat yams after eating pig liver. Suitable foods: yam, honey, strengthen the spleen and kidneys, resist aging and increase longevity. Yam and lotus seeds strengthen the spleen and kidneys, resist aging and increase longevity. Yam and Astragalus replenish qi and nourish the kidneys. Yams and almonds nourish the lungs and kidneys. Yam and sesame are calcium supplements. Yams and walnuts nourish the body and qi, strengthen muscles and bones, and strengthen the brain. Yam and duck meat strengthen the spleen and stomach, and strengthen the kidneys. Yam and mutton nourish blood, nourish the skin, strengthen the body and relieve constipation. Yam, black-bone chicken nourishes the spleen and kidneys, yam, lentils nourish the spleen and kidneys, yam, carrots strengthen the stomach and nourish the spleen, yam, beef nourishes the body, strengthens the spleen and stimulates the appetite. Nutritional analysis 1. Strengthens the spleen and stomach, aids digestion: Yams contain substances such as amylase and polyphenol oxidase, which are beneficial to the digestion and absorption functions of the spleen and stomach. It is a medicinal and food product that can only tonify the spleen and stomach. It can be eaten regardless of spleen yang deficiency or stomach yin deficiency. Clinically, it is often used together with Gastrointestinal Drink to treat symptoms such as weakness of the spleen and stomach, fatigue due to lack of food, and diarrhea. 2． Nourishes the kidneys and replenishes essence: Yams contain a variety of nutrients, which can strengthen the body and nourish the kidneys and replenish essence. It can be taken by patients with kidney deficiency, spermatorrhea, excessive leucorrhea, and frequent urination in women. 3． Benefiting the lungs and relieving cough: Yams contain saponins and mucus, which have lubricating and moisturizing effects. Therefore, they can benefit lung qi, nourish lung yin, and treat chronic cough caused by lung deficiency, phlegm, and cough. 4． Lower blood sugar: Yams contain mucus protein, which has the effect of lowering blood sugar. It can be used to treat diabetes and is a good dietary therapy for diabetics. 5. Prolong life and prolong life: Yam contains a large amount of mucus protein, vitamins and trace elements, which can effectively prevent the precipitation of blood lipids on blood vessel walls, prevent cardiovascular diseases, and achieve the effects of benefiting the mind, calming the mind, and prolonging life; 6. Anti-hepatic coma: In recent years, studies have found that yam has the effect of Sedative effect, can prevent hepatic coma.