Low alanine aminotransferase is of little significance and is seen mainly in normal people. Low alanine aminotransferase generally has no clear pathologic significance and is seen in normal populations and only requires continued observation. Normal values for alanine aminotransferase are 0 to 40 U/L, with normal values in some hospitals ranging from 5 to 40 U/L, such that some people test below 5 U/L. Glutaminase is found in organs and tissues such as liver, kidney, bone, etc. If the value is elevated, it is related to life and diet such as drinking alcohol, eating greasy diet, etc., or drugs such as rifampicin, chlorpromazine, etc., or diseases such as viral hepatitis, cirrhosis and pancreatitis. For patients with low ghrelin, it is recommended to consult a doctor in time for a comprehensive analysis with test results and symptoms.