Interviewer: Doctor, are there glutathione numbers that you test for? What sort of conditions do you see people come in with where you say, you know what, we need to test for that?
Dr. Don Colbert: I used to test a lot of my patients for glutathione but then realize, I used to check the RBC's. The RBC's life is only 90 to 120 days. The WBC's, we find, is more accurate, the white blood cells. They have a longer life. Actually, a new test I've been doing, I measure the WBC glutathione levels as well as I measure a spectrox, where they actually take the white blood cells and expose them to hydrogen peroxide to see how long it takes them to die. The cells that contain the highest amount of glutathione and antioxidant takes a much longer to die and they give you a value based on how long it takes to die. The higher the value the better the cells are, the more antioxidants they contain. That's the test I prefer, because I know if I can get my patient's level up to about 90, or 85 or higher, that's an A. That's excellent; they have a tremendous antioxidant capability inside their cells, which is the most important part to be in.