Mushrooms are rich in protein, vitamins B2, B5, PP, potassium, cobalt. Including mushrooms in the diet strengthens the nervous and cardiovascular system, strengthens hair and nails. A characteristic of mushrooms is the presence of chitin in their composition. This polysaccharide, similar in structure to cellulose, is absorbed by the body over a long period of time and prevents the absorption of other foods. Frequent consumption of mushrooms increases the risk of gastritis, pancreatitis and other gastrointestinal diseases.