Hi All, I thought this was a very interesting paper on vitamin D. Or rather hormone D. I hope its not a problem that I copied in all but the graph, charts and references. I found this difficult to read on the original site because of my visual tracking problems. Clicking on the link will provide those and make reading parts of this a little easier. This site appears to have been abandoned a few years ago so I didn't want to lose this article. tc ... x http://bacteriality.com/2009/08/10/iom/ Second-guessing the consensus on vitamin D Author: Paul Albert & Amy Proal 10Aug2009 Men who have excessive faith in their theories or ideas are not only ill prepared for making discoveries; they also make very poor observations. Of necessity, they observe with a preconceived idea, and when they devise an experiment, they can see, in its results, only a confirmation of their theory. In this way they distort observation and often neglect very important facts because they do not further their aim….Claude Bernard, An Introduction to the Study of Experimental MedicineThis article discusses our experience at the one-day Institute of Medicine workshop on vitamin D and calcium. Both of us had an opportunity to make comments before the committee. Here are Paul’s comments and slides and here are Amy’s comments and slides. Note that our 2009 paper in Autoimmunity Reviews discusses some of the science we allude to in further detail.