1.Spleen, stomach and digestion: Yam contains amylase, polyphenol oxidase and other substances, which is beneficial to the digestion and absorption function of the spleen and stomach, and it is a dual-purpose product for medicine and food. Both spleen yang deficiency and stomach yin deficiency can be eaten. Clinically, it is often used with Weichang Decoction to treat spleen and stomach weakness, anorexia, fatigue, diarrhea and other diseases.

2. Nourishing the kidney and replenishing essence: Yam contains a variety of nutrients, which has the functions of strengthening the body and nourishing the kidney and replenishing essence. Generally speaking, nocturnal emission due to kidney deficiency, leukorrhagia in women, frequent urination and other symptoms can be taken.

3. Benefiting lung and relieving cough: Yam contains saponin and mucus, which has the functions of lubrication and moistening, so it can benefit lung qi, nourish lung yin and treat lung deficiency, phlegm and cough for a long time.

4. Lowering blood sugar: Yam contains mucin, which has the effect of lowering blood sugar, and can be used to treat diabetes, which is a good diet for diabetics.

5. Longevity: Yam contains a lot of mucin, vitamins and trace elements, which can effectively prevent the deposition of blood lipids on the blood vessel wall, prevent heart disease, and achieve the effects of benefiting the mind and calming the nerves and prolonging life;

6. Anti-hepatic coma: In recent years, studies have found that yam has a sedative effect and can be used to resist hepatic coma.