It is best not to eat a night, the nutrients of the fungus will reduce and produce harmful components. Because the silver fungus contains more nitrates, after cooking, such as put in a long time, under the decomposition of bacteria, nitrates will be reduced to nitrite.

Nitrite is a harmful component of the body, will make the normal hemoglobin in the human body oxidized into methemoglobin, the loss of the ability to carry oxygen, thus affecting the human hematopoietic function.