According to the query of 39 health network, it is known that the overnight mushroom soup can not be consumed. In the process of overnight, mushrooms and bacteria have a direct reaction, the mushroom surface formed a bacterial growth performance, it is likely to release nitrite, for human health will have a carcinogenic effect. If patients eat blindly, it is likely to cause a reaction of diarrhea, and even cause gastroenteritis, which is not conducive to health, so it is not recommended that patients eat overnight mushroom soup.