Each 100 grams of dried shiitake mushrooms contains 13 grams of protein, 1.8 grams of fat, 54 grams of carbohydrates, 7.8 grams of crude fiber, 4.9 grams of ash, 124 mg of calcium, 415 mg of phosphorus, and 25.3 mg of iron. And vitamins B1, B2, C, etc. In addition, it also contains more ergosterol and mannitol, which can be converted into vitamin D2 by sunlight or ultraviolet rays, which can enhance human immunity and help the growth of children's bones and teeth. It is reported that there are more than 30 kinds of enzymes in shiitake mushrooms, which are unique foods that can correct enzyme deficiency in the human body.

Fresh mushrooms contain: 19 kcal of energy, 2.2 grams of protein, 0.3 grams of fat, 5.2 grams of carbohydrates, 41.3 micrograms of folic acid, 3.3 grams of dietary fiber, 0.08 mg of riboflavin, 2 mg of niacin, and vitamins C1, mg calcium 2 mg, phosphorus 53 mg, potassium 20 mg, sodium 1.4 mg, magnesium 11 mg, iron 0.3 mg