But real clinical evidence is still pretty shaky at best. Like 5 years ago there was a lot of hype about Vitamin D and a lot of hope that new studies would conc

But real clinical evidence is still pretty shaky at best. Like 5 years ago there was a lot of hype about Vitamin D and a lot of hope that new studies would conclusively show value in supplementation, but it didn't turn out that way, e.g. http://www.medscape.com/viewarticle/819670 http://www.medscape.com/viewarticle/819670