http://www.12scblog.com/siteowner962005 "Vitamin D", also known as the sunshine vitamin, is not really a vitamin, but a hormone that is produced naturally when our skin is exposed to sunlight. The amount of ... http://www.12scblog.com/siteowner962005/post-why-we-need-vitamin-d-4783.html http://www.12scblog.com/siteowner962005/post-why-we-need-vitamin-d-4783.html