doesn't it bother you at all that so many studies are published on pubmed touting vit d? along side studies with how great vaccination is, and how fluoride is great for bones and teeth, and how prozac is harmless and helps "balence" people's emotional issues... etc etc? none of it can really be trusted. each individual must do two things. 1). understand both sides of the issue very well and (2) find a way to get yourself tested. then you will know, and won't have to wonder. and, can't be taken advantage of.