Very cool, and one aspect that was glazed over a bit was the following. That vitamin D is part of what helps you absorb Calicium. And why is calcium so important and we have a large storage system of it in our bones. And it's not just important for bone density. Without calcium the signaling done could not happen.

In fact one thing mentioned elsewhere is that calcium is important in leaky gut. Without enough calcium the tg do not close and we have leaky gut.

Calcium is so important that the body does a great job in making sure we have enough moving through the body, but when it does not absorb enough it gets it from the bones.

One other interesting thing is look at maps showing IBD (Inflamitory Bowel Disease) a large proportion of folks live in areas with less sun.

http://www.vetsci.psu.edu/personnel/...rna.cfm?page=3

Even not considering Calcium.
http://www.ncbi.nlm.nih.gov/entrez/q..._uids=16563470