Thank you everyone for your input.
Here are more facts:
http://www.vitamindcouncil.com/
The high rate of natural production of vitamin D3 cholecalciferol in the skin is the single most important fact every person should know about vitamin D because it has such profound implications for the natural human condition.
Vitamin D is a steroid hormone precursor that has recently been found to play a role in a wide variety of diseases. Current research indicates vitamin D deficiency plays a role in causing seventeen varieties of cancer as well as heart disease, stroke, hypertension, autoimmune diseases, diabetes, depression, chronic pain, osteoarthritis, osteoporosis, muscle weakness, muscle wasting, birth defects, and periodontal disease—and it probably doesn't stop there, there is still much more research that needs to be done.
This does not mean that vitamin D is the only cause of these diseases, or that you will not get them if you take vitamin D. What it does mean is that vitamin D, and the many ways in which it affects a person's health, can no longer be overlooked by the healthcare industry nor by individuals striving to maintain, or achieve, a greater state of health.
Vitamin D casts cancer prevention in new light[P]erhaps the biggest bombshell about vitamin D's effects is about to go off. In June, U.S. researchers will announce the first direct link between cancer prevention and the sunshine vitamin. Their results are nothing short of astounding...those taking the vitamin had about a 60 percent reduction in cancer incidence, compared with those who didn't take it, a drop so large—twice the impact on cancer attributed to smoking—it almost looks like a typographical error.
And in an era of pricey medical advances, the reduction seems even more remarkable because it was achieved with an over‑the‑counter supplement costing pennies a day.
~ The Globe and Mail
The sunshine superstar: study reveals Vitamin D as "wonder vitamin"Twenty minutes lying in the sun this weekend could provide your best chance of avoiding colds and flu, according to new research which demonstrates that vitamin D, not vitamin C, provides the most efficient protection against cold viruses.
~ The Independent