Oral DNA testing uses saliva to identify diseases in the mouth and body. It uses specific information contained in your saliva to lighten what is going on in your body. Although diabetes is not spread through saliva, the fluid in the mouth can help detect and monitor diabetes so that the disease's dangerous consequences do not fully develop. Patients are more likely to have tests done if saliva is used instead of blood, allowing disease or the possibility for disease to be detected early and possibly prevented entirely. Learn more in our blog article, "Expect More From Your Spit: The Slobbery Link Between Your Saliva and Diabetes."