Nancy B wrote: "Did I miss a earlier post about fillings? We are interested ever since I heard Dr. Kellas speak about getting to the root cause of illness. I am also reading a book about homocysteine. "Homecysteine through the Methlation Process". The following statement came from the Alternative Medicine Review (vol. 2, No. 4 pg.. 234, 1997) Homocysteine Metabolism: Nutritional modulation and impact on health and disease by A. M. Miller, G. S. Kelly." How do you get tested for homocysteine? Is this something that can be done by a blood test?