There are three major contraindications to eating shiitake mushrooms is not true, shiitake mushrooms can provide nutrients to the body. Each 100 grams of shiitake mushrooms contain 26 calories, 5.2 grams of carbohydrates, 2.2 grams of protein, 0.3 grams of fat, 2 milligrams of niacin, 53 milligrams of phosphorus, 20 milligrams of potassium, 11 milligrams of magnesium, as well as other vitamins and dietary fibers, which can replenish the body with the nutrients it needs for good health. As shiitake mushrooms also contain a large amount of dietary fiber, if too much is taken in at one time, it may cause the stomach and intestines to be unable to digest, aggravating the burden on the stomach and intestines and causing bloating and abdominal pain. In daily life, if you need to eat shiitake mushrooms, they should be cooked, and those who are allergic to shiitake mushrooms should not consume them.