Anyone who has handled yam in the kitchen knows that peeled yam is sticky and some people are allergic. This is because yam is rich in a kind of mucus complex which is composed of polysaccharide, protein, alkaloid and saponin. Among them, protein accounts for about 47%, and the polysaccharide content is about 52%. The allergic contact of yam is related to these alkaloids, saponins and foreign proteins, and polysaccharide gives yam a sticky feeling. These polysaccharides can adhere to the surface of gastric mucosa after entering the stomach, and have a certain stomach nourishing effect on patients with gastric ulcer, gastritis and hyperacidity. Here is a detailed introduction to how to nourish the stomach with yam. The mucopolysaccharide in yam can protect the mucopolysaccharide in gastric mucosa, which is often compared to "plant collagen". After they enter the digestive tract, they adhere to the mucosal surface of the digestive tract destroyed by Helicobacter pylori, thus isolating the corrosion of gastric acid on the ulcer surface and inflammatory surface, and alleviating the discomfort symptoms such as heartburn and stomachache to some extent. There is a lot of evidence-based medical evidence. Because of this, yam rich in polysaccharide has a certain stomach nourishing effect. It is suitable for patients with gastric ulcer and chronic gastritis. But "seeking medical treatment" needs to remind you that once the above lesions appear in the stomach, going to a regular hospital as soon as possible is the cure. Diet can only be used as a palliative to relieve symptoms. There are different varieties of yam, so it is very different to choose different varieties of yam to nourish the stomach. We should choose yam with rich polysaccharide content, that is, yam with dense taste, waxy surface and sticky powder. The most representative yam is iron stick yam. Highly respected by Chinese medicine, it can be used as medicine after drying. Modern research shows that the coefficient of viscosity variation of different yam germplasm reaches 56. 18%, and the difference is extremely significant. The content of polysaccharide, mucus and other components in iron stick yam is higher than that in common yam. Another kind of vegetable, yam, is crisp and delicious, firm in shape, suitable for cooking, and has much less polysaccharide content. In addition to yam, these foods containing polysaccharide also have a certain stomach nourishing effect. In addition to yam, tremella, auricularia auricula, shiitake mushrooms, Flammulina velutipes, mushrooms and other mushroom foods also contain a lot of polysaccharides. Mushroom biscuits that can nourish the stomach promoted by a food enterprise are the result of adding mushroom polysaccharide extract to ordinary biscuits. In addition, the polysaccharide content in Lycium barbarum and Undaria pinnatifida is not low. However, this kind of biscuit is expensive, so it is not recommended that you buy it. Don't buy too much even if you want to buy it. It is enough for you to ensure that the proportion of other mushroom foods is appropriately increased in your daily diet. Disclaimer: The above content comes from the Internet, and the copyright belongs to the original author. If there is any infringement of your original copyright, please let us know and we will delete the relevant content as soon as possible.