Shiitake mushroom as a food, does not have the efficacy and effect of medicine. However, shiitake mushrooms contain some protein and other nutrients that can provide the body with some energy. In terms of contraindications, it is forbidden to consume shiitake if you are allergic to it. Shiitake mushroom is a kind of fungus and algae food, usually used in soup or fried. Since shiitake mushroom is just a common food in life, it does not have the efficacy and effect of medicine, but it is not recommended for people who are allergic to shiitake mushroom. Shiitake mushrooms are rich in nutrients and can provide certain nutrition for the human body. Every 100 grams of shiitake mushroom contains 91.7g of water, in addition, shiitake mushroom also contains 2.2g of protein and 137KJ of energy, which provide the substances needed by the human body for daily activities. Although eating shiitake mushrooms can supplement certain nutrients for the human body, you should not only eat shiitake mushrooms, but also need to have a balanced diet, which is conducive to the health of the human body.