CBG: Hi. There is a blood protein that binds cortisol called cortisol-binding globulin (CBG). Some people are genetically lacking CBG, so that large fraction of bound (kind of inert) cortisol is missing, and their cortisol blood levels are much lower. CBG does not go into saliva, but cortisol does. Without knowing more details, that could account for the differences.
Answered 7/12/2014
3.9k views
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question