The recent questions about the importance of cholesterol numbers as well as the post on Mark's Daily Apple about "Doctors as Middlemen" have led me to the following:
Are there easy ways to participate in health studies that can lead to real answers about the diet we are choosing?
For example, I know that Grass Roots Health has sponsored a multiyear study of vitamin D levels. You sign up to have your levels tested twice per year, and your results get merged with others. Anything else like this happening?
