Yam belongs on dioscoreales, is a perennial herb. Yam is also known as Rhizoma Dioscoreae. It is rich in nutrition, since ancient times, was regarded as a high quality tonic and the price is also cheap. Yam can be used as a staple food, but also can be used as a vegetable, can also be made into snacks, such as candied fruit.
The nutritional and therapeutic value of Yam
1.Whet the appetite and tonifying spleen, aid digestion.
Yam contains amylase, polyphenol oxidase material which is conducive to digestion and absorption functions of stomach, is a kind of nourishing the spleen and stomach medicine food dual-use goods.
2.Nourishing kidney and boost essence.
Yam contains a variety of nutrients, with a strong body, nourishing kidney and boost essence effect. Any kidney deficiency, nocturnal emission, women leucorrhea more, frequent urination and so on, all can take benefit from eating yams.
3.Beneficial to the lungs, can also relieve a cough.
Yam contains saponins, mucilage, which has the role of lubrication and moisture. Therefore, yam can be beneficial to the lung, nourishing Yin, treatment of lung deficiency, phlegm syndromes of chronic cough.
4.Lower blood sugar.
Yam contains mucus protein which has a role of lowering blood sugar, helps treat diabetes, it is a good medicinal food for the people with diabetes.
Yam contains a lot of mucus protein, vitamins and trace elements, can effectively prevent the precipitation of lipids in the blood vessel wall, prevent cardiovascular disease, and achieved soothing the nerves, prolong life effect.
6.Resistance to hepatic coma.
Recent studies have found that yam has a sedative effect, can resist hepatic coma.
The precautions of eating Yam
1.Yam with astringency effect, so the people with cold, constipation and gastrointestinal accumulation should not eat.
2.The peel of yam contains saponin, and mucus in yam contains alkaloids, after a small number of people contact, can cause allergies and itching, so in the processing of yam, should avoid direct contact.
3.Yam can not be eaten raw, because raw yam has a certain toxicity.
4.Yam can’t taking with alkaline drugs together.