The first effect of shiitake mushroom is to strengthen the spleen and appetite, because shiitake mushroom itself contains very fragrant substances, and by stimulating the taste buds, it can make the volatile fragrance more obvious in regulating the spleen and stomach. The second effect of shiitake mushroom is to remove phlegm and regulate gas. For cough and phlegm caused by chronic bronchitis and asthma, if some shiitake mushroom is consumed properly, it can regulate the intestinal flora through dietary fiber, and the lung and the large intestine are on the same level, so it can play a very strong role in removing phlegm and regulating gas. The third effect of shiitake mushroom is that it can fight against cancer because it is rich in mucopolysaccharide, which can promote the strengthening of immunity in our body.