Yam, originated in Guhuaiqing Prefecture, which is now in Qinyang and Jiaozuo areas of Henan Province, is called Huai Yam, also called Huai Yam, or short for Huai Shan. It is one of the potato foods with a long history in China, which appeared on the dining table as far back as the pre-Qin period. In contrast, potatoes were introduced to China in the 16th century, so they are also called yam eggs.
Yam is a good food, and it is also an ancient medicinal material. It is a typical homology of medicine and food.
In the ancient thinking of traditional Chinese medicine, to know a certain food or medicine, the method of analogy is usually adopted. Let's try this method to get to know yam.
Let's take a look at how Zhang Xichun, a great doctor at the end of the Qing Dynasty and the beginning of the Republic of China, interpreted Chinese yam in his book "Learning from the West in Medical Enthusiasm":
It can be seen that the tonic effect of yam is very significant.
"synopsis of the golden chamber" records that the yam pill for treating asthenia is prepared with yam as the main medicine instead of ginseng. Zhang Xichun's self-made yam drink, recorded in Medical Enthusiasm, can cure women's postpartum weakness by simply decocting yam, and the effect is amazing.
From the point of view of five elements, yam is yang soil, and yang soil is dominant in descending, so it can reduce lung qi, promote fluid production to quench thirst, and tonify kidney qi, which can directly reach the lower jiao.
From the perspective of the mutual inclusion of the five elements, yam is a kind of wood in the soil, which contains upward trend in the process of harvest and decline, so it can strengthen the spleen and raise yang, and it is not suitable for patients with hypertension with hyperactivity of liver yang to take it for a long time.
Daily consumption, cooking, frying and stewing, and various cooking methods can be used. When I cook, whether I cook braised pork, sparerib soup or mutton soup, I will add yam, which is delicious and nourishing.
For people with a vegetarian diet, you can add yam, red dates and medlar to rice porridge, which has an excellent effect of tonifying qi and blood and can be used as a therapeutic prescription.
In addition, for those who have a cough after catching a cold, especially the elderly and children, 60 grams of yam and 15 grams of bitter apricot can be used instead of tea, and children can add crystal sugar appropriately to make the taste better. It can not only treat chronic cough after illness, but also avoid the trouble of bitter medicine.
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