Dr Cannell of the Vitamin D Council discusses Vitamin D Day. The Vitamin D Council is a 501(c)(3) nonprofit organization, spreading reliable information on vitamin D, sun exposure and the vitamin D deficiency pandemic. Mission The Vitamin D Council’s mission is to educate the general public and health professionals on vitamin D, sun exposure, and the vitamin D deficiency pandemic. Vitamin D Day from Vitamin D Council on Vimeo. Dr Cannell discusses Vitamin D Day, November 2nd